F - I; Update

Italic = new.

Facebook - Student communities - Community
Faceparty - Clubber community (UK) - Community
Factbites - Search results in sensible sentences - Search
Faketown - Create, buy, sell, trade & share virtual assets - Game
Famesource - Enhance your fame by buying exposure - Identity
Famiva - Collaborate on your family tree - Community
Famster - Family community - Community
Famundo - Schedule your family & organization - Office
Fannation* - Customize your sports team's content here - Startpage
Fanpop - Share bookmarks & meet fellow fanatics - Community
Faqqly - Trade Q&A, advice, lend things to friends - Economy
Farecast - Get alerts for flight fares at your level - Ecommerce
Fark - Share links & comments to ridiculous news - News
Fashmatch - Match your clothes - Ecommerce
Fastap - Design better keypad interfaces for mobile devices - Design
Fastr - Guess game; Flickr mash-up - Game
Fatfingers - Get better deals on Ebay thanks to typos - Ecommerce
Favmark - Social bookmarking - Bookmark
Favoor - Personal portal - Startpage
Favoriteblogs - Personal blog feed portal - Startpage
Favoritethingz - Create a badge with your favourite things, give it exposure & earn money - Ecommerce
Favoritoo - Social bookmarking - Bookmark
Favorville - People helping people - Economy
Favr~ - Social bookmarking - Bookmark
Fazed - Share cool links - Bookmark
Fckeditor - web-based word processor - Office
Febber~ - Enterprise RSS aggregation solutions - RSS
Fedsifter - Search feeds - Search
Feed43 - Web page & Blog2RSS - RSS
Feedadvisor - Follow your peers' feed recommendations - News
Feedalley - Social bookmarking - Bookmark
Feedback20 - Engage an audience in a themed conversation - CRM
Feedbeat** - Bookmark videos, create & share internet tv-shows - Video
Feedbite - Share, bundle & syndicate your feeds - RSS
Feedblendr - Blend several feeds into 1 - RSS
Feedblitz - Notification2email - Publish
Feedburner - Manage your rss & podcast feeds - RSS
Feedbutler - Social feed reader - RSS
Feedcollectors - Collects & socializes your feeds - RSS
Feedcraft - Create, manage, deliver & track feeds - RSS
Feedcrier - Get RSS news alerts through your IM - RSS
Feedcycle - Serialize your feeds - RSS
Feeddigest - Mix, filter & republish or syndicate feeds on your website - RSS
Feedfeeds - RSS reader (Ajax) - RSS
Feedforall - RSS script directory - Software
Feedication - Personal portal - Startpage
Feedicon - Create your feed icon - RSS
Feedity - Web2rss - RSS
Feedlet - Feed reader - RSS
Feedlinx - Find feeds on any website - RSS
Feedlounge - Feed reader - RSS
Feedmailr - Feed2mail - RSS
Feedmap - Map your blogs - Geo
Feedmarker - Social bookmarking for news - Bookmark
Feedmashr - Search for rss feeds from past & present hottest news & top stories - News
Feedmelinks - Social bookmarking - Bookmark
Feedmeme - Share feed apps - RSS
Feedostyle - Personalize your feeds - RSS
Feedpass - Create a landing page for your RSS feeds - RSS
Feedpath - Social feed reader - RSS
Feedpile - Store & share feeds & links - Startpage
Feedping - Submit your feed to major directories - RSS
Feedrinse - Filter your most interesting feeds - RSS
Feeds20 - Folksonomied feed reader - RSS
Feeds2be - Create feeds from websites that don't have any - RSS
Feeds4all~ - Feed aggregator - RSS
Feedshot - Optimize findability of your blog - Search
Feedshow - Feed reader + shares rev with publishers - RSS
Feedster - Search for feeds - Search
Feedthebull - Submit info and have the community vote on it - Finance
Feedtier - Web page & Blog2RSS - RSS
Feedtv - Feed portal - Startpage
Feedvertising - Put advertising in your feeds - Marketing
Feedwhip - Track changes on your favourite websites - RSS
Feedxs~ - Create personal feeds (without website), submit thru messenger - RSS
Feedyes - Gives feeds to sites without feeds - RSS
Feedzie - Finds feeds & casts - Search
Feefo - Leave feedback on sellers; forum - Communicate
Feelingbullish - Rate, view & discuss stocks - Community
Femo - Tag & share memos online - Office
Fetishtowers - Fetishists community - Porn
Ficlets - Write short stories together - Collaborate
Filangy - Current search - Search
Fileindex~ - Real time traffic jam map mash-up - Geo
Filemobile - Store, organize, share & blog your media - Publish
Filenice - File browser (client) - Software
Filmcrowd - Review & rate films - Video
Filmpjes~ - Upload, rate & share videos - Video
Financialengines - Personalized financial advice & portfolio management - Finance
Findmeon - Manage your online identities in 1 place - Identity
Findory - Personalize your news - News
Findsounds - Search for sounds - Search
Finetune - Create your own radio feed - Audio
Finsock - web-based sme business software - Software
Fintag - Finds LSE stocks - Search
Fireant - Upload & share multimedia - Multimedia
Firstgiving - Start your own fundraiser & market it - Economy
Fisz~ - Social bookmarking - Bookmark
Fivelimes - Green shop aggregator - Ecommerce
Fiveruns - Monitor & maintain your systems - Software
Fixya - Social helpdesk - CRM
Flagr - Bookmark the real world - Geo
Flagrantdisregardcardgame - Create & share your collectable card game - Game
Flagrantdisregardslideshow - Slideshow of Web 2.0 pages - About
Flappr - Search pictures; Flickr mash-up - Images
Flashearth - Global maps mash-up in flash - Geo
Flashface* - Compose your Most Wanted portrait - Images
Flashpaint - Draw & share pictures - Design
Fleck - Annotate web pages (& share your notes thru email) - Office
Flektor - Mash-up & publish your media - Publish
Flexdirectory - List people, groups, jobs - Data
Flexlists~ - Create & share lists - List
Flexpetz - Share a dog for a few hours or days - Economy
Flickr* - Manage & share your photos - Images
Flickrfling - RSS feeds & Flickr mash-up - Images
Flickrfotofinder - Find & publish photos - Images
Flickrgraph - Visualize relationships inside Flickr - Community
Flickrgraph** - Visualize your network on Flickr - Data
Flickrleech - Fast search for Flickr photos - Images
Flickrlicious - Share babes on Flickr - Images
Flickrlogomakr - Make Flickr-like logo in a second - Design
Flickrmap - Map Flickr photos - Geo
Flickr-storm - Fuzzy search engine for Flickr photos - Search
Flikzor - Profile yourself in a video & publish it anywhere - Video
Flingr - Connect with people you've ever met - Community
Flipadisc - Trade media - Ecommerce
Flippid - Post what you need, and get an offer - Ecommerce
Flipskipper - Personal feed aggregator - News
Fliptrack - Put your photos to music & share it as a video - Video
Fliqz - Share your video collection - Video
Flirtomatic - Flirt & date - Date
Flitic - Manage, tag & find feeds - RSS
Flixster - Discover & share movies with friends - Video
Flixya - Upload & share videos + revenues - Video
Floorplanner~ - Design your floorplan online - Software
Flowermaker - Design flowers - Design
Flowser - Visual Amazon search - Search
Fluctu8 - Create & share your sourcelists - Audio
Flukiest - Publish & share videos & photos - Multimedia
Flurry - Get your email & more on your current phone - Communicate
Flurrymail - Your email on your current mobile phone - Communicate
Fluxiom - Capture, manage, access & deliver content - Multimedia
Flyingcart - Set up an online shop - Software
Flyinside - Create, publish & share virtual photo tours - Images
Flyr - Search Flickr for geotagged photos - Geo
Flyspy - Graph all of your choices in air travel - Ecommerce
Foafproject - Contribute to web of machine-readable pages describing people & their networks - Identity
Fold - Personal portal (stopped) - Startpage
Foldera - Organize email, im’s, docs, tasks, and events instantly - Organize
Foldershare - Store, access & share files - Store
Fon*** - Share, buy, sell wi-fi connections - Wi-fi
Fonttester - Compare fonts side by side online - Design
Foonance - Manage your finance - Finance
Foonz - Make group calls for free (USA) - Communicate
Fooooo - Search +20M videos - Search
Foopad - Create your own wiki - Publish
Footnote* - Publish & share your history, research, diaries, stories...anything - Publish
Foresightexchange - Bet on your predictions - Gamble
Forlater - Send email reminders to yourself & others - Communicate
Formassembly - Create, host & manage forms - Office
Formatpixel* - Design, publish & share in any format - Publish
Formlogix - Create forms online - Office
Formspring - Create & publish forms & surveys - Software
Fortuitos - Make friends by accident - Community
Forummatrix - Compare forum software - About
Fotki - Upload, share, print photos - Images
Fotochatter - Publish & share photo on web & cell - Images
Fotocodex - Collaboratively collect, publish & share group photos - Images
Fotoflix - Upload & share photos - Images
Fotogopo - Animated local route map; Google Maps & Geocoder mash-up - Ecommerce
Fotolia* - Buy & sell images - Images
Fotolog - Create & map your phlog - Publish
Fotologue* - Publish & share photos (beautiful Ajax interface) - Images
Fotoloop - Create photo loops & share them on your website - Images
Fotowoosh - Extract 3D image from 2D pictures (stealth) - Images
Foxcloud - Social bookmarking - Bookmark
Foxway - Track your budget - Finance
Fractionallife* - Co-own a/o co-use nice things - Economy
Framer - Add a frame to your photos - Images
Framer - Add a frame to your photos - Images
Franchisegator - Ajaxified franchise search & match - Search
Frankenfeed - Aggregate your feeds - News
Frappr - Put your group on the map, share photos - Community
Free411 - Listen to ads & get free directory guide service - VAS
Freelink - Social bookmarking - Bookmark
Freeonlinecalenderpdf - Calendar2PDF - Office
Freepledge - Support charities every time you shop - Economy
Freetube - Free tv over ip - Video
Freevlog - Set up free video blog - Publish
Freewebs - Create free website, share, sell - Software
Freeyourid* - Open ID + .name + your domain = FreeyourID - Identity
Frengo - Mobile entertainment & communications community - Community
Freshbooks - Online invoicing and time tracking service - Finance
Friendping - Share map, media & bookmarks with friends - Community
Friendsabroad - Meet & communicate with people globally - Community
Friendster - Connect with friends - Community
Fring - Call for free on your 3G cell - Communicate
Froogle* - Local shopping search engine; Google Maps mash-up - Ecommerce
Frucall - Mobile price comparison - Ecommerce
Frühstückstreff - Meet people for breakfast - Community
Fruitcast - Podcast advertising network - Marketing
Frylance - Promote yourself as a freelancer or find one (French) - Employment
Fuckweb2 - Tagged manifesto to shut up about Web 2.0 - Fun
Funadvice - Q&A - Knowledge
Funambol - Mobile OS project - Software
Funda~ - Real estate locations mash-up (nice maps, nice zoom!) - Geo
Fundable - Pledge for funding - Economy
Fundooweb - Meta search - Search
Fungow - Social bookmarking - Bookmark
Funkplayer - Create, upload & share music - Audio
Funkycall - Record, upload, deploy & share your phone pranks - Communicate
Funnyordie - Help decide if these videos are funny - Video
Funtigo - Upload & share photos, add music & balloons - Images
Furl - Clip, store & share web pages - Bookmark
Futef - Clustered search on Wikipedia - Search
Futureme - Remind yourself by future email - Office
Fuvoo - Submit, explore, share & digg videos - Video
Fuzzmail - Record & send 'film' of how you generate an email message - Communicate
Fuzzster - Meet pets & their owners - Community
Fwditon - Rank & read blog articles - Rate
Fwicki - Create & share your feed experience - RSS
Fyuze - Feed portal - Startpage

Gabbly - Get chat on your blog - Communicate
Gabbr - Share news - News
Gabinetedeinformatica - Reviews Web 2.0 sites (Spanish) - About
Gabmail* - Record & send videomail - Communicate
Gadabe* - RSS metasearch (relaunched as Tagjag) - Search
Gahooyoogle - Google + Yahoo mash-up - Search
Gameklip - Record & share your best gaming moves & tricks - Video
Gamerankings - Vote for & rank games - Game
Gamervision - Publish & share profiles, news & blogs on gaming - Community
Gapminder** - Visualise Google search statistics - About
Garbagescout - Find treasures on NY streets; Google Maps mash-up - Ecommerce
Garlik - Find & track private data online (UK only) - Identity
Gather - Share passions & get paid - Economy
Gazzag - Post & share photos, find friends - Images
Gcast - Podcasting tools & hosting - Audio
Gchart - Check local time globally - Geo
Gdisk - Hosting thru Gmail - Store
Gearon - Social mobile network around your cellphone's contacts (stealth) - Community
Geek2geek - Find your geek match - Community
Geeklog - Create blogs - Publish
Geesee - Provide chat services, or participate in chats - Community
Genbeta* - 2.0 blog (Spanish) - About
Geni - Create & share your family tree, in Ajax - Community
Genielab - Explore, recommend & rate music - Audio
Genwi - Upload, share & promote all your media - Multimedia
Geobeats - Produce, publish & share tourist videos - Video
Geotagit - Upload & share geotagged collections - Geo
Geotool - Map yourself - Geo
Geotracing.com~ - Share the geo-located photos you've made during a trip & your (animated!) route (and more…!) - Geo
Geotract - Share places & people - Community
Geourl - Location 2 URL directory - Search
Geovector*** - LBS services with a usable interface. - Geo
Getabuz - Create a voice mail with music - Communicate
Getafirstlife - Parallel version of Second Life - Fun
Getboo - Social bookmarking - Bookmark
Getdemocracy - Watch or make tv - Video
Getmyvcard - Share your vCard anywhere - Office
Getthemlaid - Post your friends' pictures & give them some action - Fun
Gettomas - Online artist management tool - Software
Ghostzilla - Browse the web within other apps - Browse
Gibbity - Digg games - Rate
Gibeo - Share web annotations & content - Knowledge
Giftbox - List & manage gifts - List
Gifthat - Publish & share wishlists - List
Giftornot - Get ideas for gifts (Amazon mash-up) - List
Gifttagging - Create, tag & share gift lists - List
Giga* - Watch all kinds of live stream & vod shows (German) - Video
Gigadial - Create your podcastradio stations - Audio
Gigasize - Upload & share files - Store
Gigoit - Reuse, donate or receive 2nd hand goods in your community - Economy
Gigya - Myspace2email - Communicate
Givealink - Donate & share bookmarks - Bookmark
Givebobadollar - Begging - Economy
Givemeaning - Give or take fundraising community - Economy
Givezilla - Create fundraising storefront - Economy
Gixo - Personal portal - Startpage
Gizmo - Call Gizmo friends for free, or pay low rates - Communicate
Gizmoojo - Geek community - Community
Gizmoz* - Create your 3D video avatar & use it anywhere - Identity
Glance - Share your screen (7 day free trial) - Multimedia
Glee - Community for gays & lesbians - Community
Glendor - Find & locate jobs (map mash-up) - Employment
Glide - Upload & share multimedia - Multimedia
Gliffy - Draw & share diagrams - Images
Glimpse* - Buy things that celebs wear - Ecommerce
Glinkr - Map & share views on issues - Collaborate
Globalvoices - Tagged aggregator of regional information from particapatory media - Collaborate
Globeassistant~ - Get your content mashed up with Google Earth - Geo
Globeblogr - Publish & share your favourite places - Publish
Glue - Publish & share your website's content on mobile devices - Publish
Glypho - Read & write books together - Publish
Gmworldwar - Risk-like MMO on maps mash-up - Game
GNF - Building tools & services for your resume - Employment
Gnomz - Create & share blogs & comics (French) - Publish
Gnoos - Blog search - Search
Gnosh - Meta search - Search
Gnowsis - Semantic desktop - Search
Gnumeric - Spreadsheet online - Office
Go2web20 - Web 2.0 logo wall - About
Gobby - Edit texts together - Office
Goffice - web-based word processing - Office
Goggles* - Flight simulator's map mash-up - Game
Gogofrog* - Create & share your 3D web page - Design
Gogooroo - User-generated guide to online tv & videos - Video
Goingon - Always on network of networks - Community
Gojobby - Publish your resume & blog - Employment
Gokita* - Clustered meta search (no advertising) - Search
Good - Global mobile messaging for the enterprise - Communicate
Goodnotes - Bookmark, leave notes at & categorize web pages - Knowledge
Goodreads - List, review & recommend books - Community
Goodsearch - 50% of ad revenues for a charity designated by you - Search
Goodstorm - Resell stuff thru your blog - Ecommerce
Googdesk - Meta search - Search
Google* - Search & adwords - Search
Googleaccounts - Account authentication API - Identity
Googleanalytics - Folksonomied visitor stats - Data
Googleanswers - Get your questions answered for money - Economy
Googleapps - Offer email, IM and calendar tools to your site's visitors - Software
Googleblogsearch - Search blogs - Search
Googlebooks - Publish & sell access to your? books - Ecommerce
Googlebrins - Create & share your Sergey Brin - Fun
Googlecalendar - Create & share events - Office
Googlecheckout - Multi channel PSP technology & services - VAS
Googlecloud - Add your search terms to these clouds - Tag
Googlecoop - Share knowledge on line - Knowledge
Googlecustomesearch - Create your own vertical search with Google - Search
Googleearth* - Global maps - Geo
Googlefight* - Compare search results - Game
Googleig* - Personal portal - Startpage
Googlekicks - Digg Google news - Rate
Googlemaps - Check local things globally - Geo
Googlemark - Register your words - VAS
Googlemars - Own a red planet - Geo
Googlemodules - Lists modules for personal Google homepage - Startpage
Googlenotebook - Compile & share notes online - Office
Googlereader - Feed reader - RSS
Googlerelatedlinks - Related links service for your web page - Search
Googleromance - Find your soulmates - Fun
Googletoolbar - Social search - Search
Googletrends - Site analytics software - Data
Googlevideo - Upload, share, purchase videos - Video
Goombah - Analyse & match your musical taste to other users' (client) - Audio
Gootodo - Online to-do service - Organize
Goovite - Invite people - Office
Goowy* - Personal portal (desktop & browser versions) - Startpage
Goplan - Organize your work & publications - Organize
Gorb - Dig people anonymously - Rate
Gottabet* - Bet on anything with friends or colleagues - for money or glory - Gamble
Gottaflirt - Flirt game - Date
Gotuit - Watch, list & share videos - Video
Gotvoice - Save & share your voice mail in email - Communicate
Gotzapp - Publish & share content thru your mobile - Community
Gpokr - Play poker & contribute to concept (see Idea-page!) - Gamble
Grabbit - Play songs from all over the web - Audio
Gradefix - Organize your homework - E-learning
Gradr - Rank, research & discuss stocks - Finance
Grandcentral* - Get 1 phone number for all your calls - Communicate
Gratuittous - Social wishlist - List
Gravatar - Your globally recognized avatar - Identity
Gravee - Searches sites & blogs; fair rev share on ads - Search
Gravityzoo~*** - The Grid! - OS
Grazr - Compile your own RSS widget - RSS
Greatboyfriends - Post & match your brother's or sister's profile - Date
Greatflickrtools - Extensive list of Flickr apps & mash-ups - About
Greedyme - List & share your wishes - List
Greenleafmarket* - Buy or sell local products - Ecommerce
Greentv - Environment focused video channel - Video
Gregarius - Feed reader - RSS
Grepr - Explore & share podcasts & get recommendations - Audio
Gridwell - Search; results with icons - Search
Gritwire - Personal portal - Startpage
Grockit - Online exam preparation - E-learning
Grokker - Enterprise search & knowledge management - Knowledge
Grokthis - Application hosting - Store
Groopus - Visualize your social context based on tags - Tag
Grootbedrijf~ - Merge your company virtually with "Big Company" - Economy
Groovid - Explore & share videos from all over the web - Video
Groovr - Text to & network with friends - Community
Grouper - Upload, create & share media - Multimedia
Grouploop - Organize & collaborate in your own group - Collaborate
Groupr - Groups photos from Flickr groups - Images
Groups - Create groups & share content - Community
Groupsharp - Share data, files & wikis - Organize
Grouptivity - Reduce response on group email - Communicate
Growl - Semantic knowledge management - Knowledge
Grupthink - Explore & share topics & opinions - Knowledge
Gruuve - Discover & listen to music similar to your taste - Audio
Gstock - Volunteer to participate in supercomputing for stocks - Finance
Gtalkr - Google Talk, Flickr, YouTube, feeds - Communicate
Guba - Upload & share videos - Video
Guess-the-google - Guess game; Google mash-up - Game
Guicookies - Social bookmarking - Bookmark
Guildcafe - Share your MMORPG history & play - Game
Gumshoo - Auction analyzer; Ebay mash-up - Ecommerce
Gunzonline - Shoot, stab, run & jump - Game
Gurulib - Organize, review & share your media - List
Guruza - Ask, or answer questions & get paid - Knowledge
Gusto - Share trips with friends & family - Community
Gutenkarte - Maps spatial components of classic literature - Geo
Gvisit - Map your site visitors - Geo

H2O - List & share readings on topics - List
Hackoff*** - Book published as blog & podcast - Multimedia
Haiku - Open source OS - OS
Haikuls - E-learning publishing & management solution - E-learning
Hakia - Meaningful results - Search
Hamsterster - Community for hamster lovers - Community
Hanzoweb - Bookmark, tag & share knowledge online - Knowledge
Harvest - Timesheets & reports - Organize
Hashbush - Meet your friends' friends - Community
Hassleme - Remind yourself of everything - Office
Hawkee - Tagged price comparison - Ecommerce
Healia - Health search engine - Search
Healthline - Contextual search for health information - Search
Heatseek - Browse porn more efficiently - Porn
Hedgestreet - Bet on all kinds of economical parameters - Gamble
Helenos - Semantic knowledge discovery - Knowledge
Helipad - Web note pad - Office
Helium - Buy, sell & trade knowledge - Knowledge
Hellodeo* - Record & send your video message - Communicate
Hellup~ - Q&A - Knowledge
Heyamigo - Matches advertisers up with newsletters - Marketing
Heywatch - Encode your video in any format - Software
Hi5 - Connect & share ideas with friends - Community
Hictu - See thru which channels you can best communicate with your contacts - Communicate
Hiddennetwork - Job board distributed thru blogs - Employment
Hiddennetwork ~? - Post your job & get matched to people who don't even seek for a job - Employment
Highfivez - Blogosphere search engine - Search
Highrisehq - Online contact manager - CRM
Hinale - Chat with people who have visited the same sites - Communicate
Hipcal - Manage & share calendar & to do lists - Office
Hippo~ - Open source cms - Software
Hirevue - Online video job interviews - Employment
Hiringthings - Hiring & renting market place (new Zealand) - Ecommerce
Hitask* - Organize & manage groups - Organize
Hitchhikr* - Share knowledge & experiences on conferences - Knowledge
Hitchsters - Share an airport cab - Economy
Hittail - Search optimization software - Marketing
Hivegroup - Treemap specialist - Data
Hivelive - Post & share information - Knowledge
Hiveminder - Publish & share tasks - Organize
HivePM - Treemap for product management - Data
HivePPM - Treemap for purchasing performance management - Data
HiveSM - Treemap for sales management - Data
Hngry - Rate & pick your restaurants - Ecommerce
Hobeez - Find & make friends people with similar hobbies - Community
Hobnobster - Web and mobile community & social bookmarking - Date
Hodgepodge - Share ideas, tips & opinions on gambling - Gamble
Holotof - Pitch your ad project among creatives - Community
Homeforexchange~ - Exchange for vacation homes - Economy
Homeportals - Mix, modify & share your web pages - Software
Homethinking - Search, find, contact & review realtors - Ecommerce
Honestyfirst - Dating for honest people - Date
Honeycomnewsmap* - News treemap - Data
Honeypitch* - Proposal automation solution - CRM
Hoovers - Manage & connect to your personal & corporate networks - Community
Hotdaddy* - Search engine aggregator - Search
Hotelworldmap~ - Find a hotel (map mash-up) - Geo
Hotornot - Geo dating (map mash-up) - Date
Hotornotdesigns - Vote for or against website designs - Images
Hotpads - Houses for rent - Ecommerce
Hotsoup - Community for political debate - Community
Hotspotr - Wi-fi café hotspot map mash-up (USA) - Wi-fi
Hotspots - Network for urban professionals - Community
Hotspottin - Share your favourite hotspots - Community
Hotxt - Skype for sms - Communicate
Housingmaps - Find housing (map mash-up) - Geo
Hoverspot - Publish & share your profile - Community
Howmuchisyourblogworth - Compute your blog's worth - Fun
Howsmynanny - Police your nannies together - Collaborate
Html2pdf - Render any web page to pdf - Software
Hubdog - Create your news channels online & on your pda - News
Hubpages - Share your genius - Knowledge
Huckuback - Meta search - Search
Huddle - Organize & manage groups - Collaborate
Hugg - Digg on environmental matters - News
Hula - Manage calendars & email - Store
Hullo* - Integrates soft, cell & landline phones - Communicate
Humanizedreader - Feed aggregator with decent design - RSS
Humanpages - Add, share & sell your profile - Economy
Humblevoice* - Publish, share bands, music, other media & arts - Community
Hunuh - Digg green technologies - Rate
Hypediss* - Hype or diss stories - Rate
Hype-list - Get the celeb news of the last 24 hours - News
Hypercomics - Create, explore & share comics - Publish
Hyperlinkomatic - Social bookmarking - Bookmark
Hypersuper - Personalize your news - News
Hypetracker - Popular news searches in graphs - News
Hyves~ - Share your profile in hyves & meet friends - Community

I4giveu - Confess, share & forgive - Community
i89 - Social bookmarking - Bookmark
Iamsearched - Are you googled-notification service - Search
Ibegin - Local search - Search
Ibetx - Betting exchange - Gamble
Ibloks - Mix, share, play your media - Multimedia
Ibridge - Aggregates early stage research & technologies - Knowledge
Icalshare - Create, share & manage your schedule - Office
Icebrrg - Build & publish forms online - Office
Iceflake - Aggregate your friends' digital personae - Identity
Icerocket - Search blogs & web - Search
Icio - Social bookmarking & rating - Bookmark
ICQphone - Call at low rates - Communicate
Ideawhip - Community for students, alumni, start-ups - Community
Ideawicket - Community for start-ups & innovators - Community
Identitysweep - Manage & protect your identity (USA) - Identity
Idigdeals - Digg deals - Rate
Idigporn - Digg porn - Rate
Idio - Create your profile & get a personalized magazine - Publish
IEM - Futures markets dependable on real events - Gamble
Ifilm - Publish, share & explore videos - Video
Ifolder - Filesharing for groups - Organize
Ifreebusy - Publish & share your calendar - Office
Igglo - Get buy alerts for houses that aren't for sale yet (Finnish) - Ecommerce
Iglance - Push-to-talk videoconf and screen-sharing - Communicate
Ignoreme - Meta brand - Marketing
Iiproperty - Manage your properties - Software
Ijigg - Submit, digg & share music - Audio
Ijot - Write, manage, publish share text files - Office
Ikarma - Document & promote your reputation - Community
Ikeepbookmarks - Social bookmarking - Bookmark
I-know-where-you’ve-been - Reads out your last visited websites (thru Firefox) - Fun
Ilike - Social music discovery service - Audio
Iliketototallyloveit - Digg the things you love - Rate
Illhostit - Host your images - Images
Illumio - Q&A - Knowledge
Iloggo - Create your logo start page - Startpage
Ilovefreewifi - Contribute to dbase of free wi-fi hotspots in USA - Wi-fi
Iloveim - Meta IM - Communicate
Ilovejackdaniels - Check text readability - Office
Ilovemynanny - Nanny jobs & support - Employment
Ilovetocomplain - Publish, share & rate complaints ("5 degrees outside and we have to worry about global warming") - Publish
Ilovetravelstories - Publish or bookmark & rank travel stories - Publish
Imageeditor - Edit your images online - Images
Imagegravy - Host & sell images - Images
Imagekind - Start your own art gallery online - Ecommerce
Imageloop**Create & share photo slide shows (and other animations) - Images
Imagemosaicgenerator - Convert image to photo mosaic - Images
Images - Create & share your own phlog - Publish
Imaginationcubed - Draw together - Images
Imagini* - Profile yourself with images & find people with similar visual DNA - Community
Imakemistakes - Read, rate & share funniest email fwds - Rate
Imbee - Secure networking & blogging for kids - Community
Imeem - Share words, files & people (on messenger) - Communicate
Imeep - Chat 1 to 1 at random - Communicate
Imemorybook - Publish & print your memories - Publish
Imgseek - Tag, rate & retrieve images - Images
Imity - Sense phones (and friends) around you thru Bluetooth - Community
Immediat - Messenger notifications of feeds - RSS
Impersonals - Date without being creepy - Date
Impetuous - Store & share porn bookmarks - Porn
Imthere - Share where your are & where you're going - Communicate
Imvu - 3D messenger - Communicate
Inbox - Personal portal - Startpage
Inchicks - Digg for women - Rate
Incircles - Add a chat app to your blog - Communicate
Indeed - Finds jobs on what & where - Employment
Indiekarma - Pay a cent to see a blog - Economy
Indistr - Sell or buy independent music - Audio
Indiza - Tag-based bookmarks - Bookmark
Industriouskid - Kid0friendly, parent-approved websites & apps - Community
Inetword - web-based word processing - Office
Infogami - Create websites - Software
Inform - Personal news portal - Startpage
Inkling* - Social delphi, exchange for futures - Game
Innertee - Design, mix, wear, share & sell - Ecommerce
Inods - Shopping review aggregator - Ecommerce
Inpowr - Plan, play & progress in every area of life - VAS
Insideflyer - Convert loyalty points - Ecommerce
Insiderpages - Social directory guide - Ecommerce
Insolitus* - Upload & share all your files & docs - Multimedia
Instan-t - Meta messenger - Communicate
Instantdomainsearch - Ajax domain search + suggestions - Search
Instantfeed - Messenger notifications of feeds - RSS
Instantnotes - Bookmark & leave notes at web pages - Knowledge
Interact10ways* - Interact with Getty images - Images
Interactionchat - Chat with your site's visitors - CRM
Internetaddressbook**~ - Find & be found, with all your 2.0 profiles - Identity
Interraproject - Do & consume good with your credit & debit cards - Economy
In-the-casino - Gambling online community - Gamble
Intrade - Trading exchange for prediction markets - Gamble
Intronetworks - Social networking solutions - Software
Introplay - Exercise, track your fitness & play together - VAS
Intute - Validate & share academic information - Knowledge
Inventiondb - Create & share online project space - Organize
Invideo - Make money on free, customizable, brandable video player - Marketing
Invitika - Organize, report & share events thru your cell - Community
Iotum - Sorts & processes calls on relevance - Communicate
Ioutliner - Manage tasks & projects - Organize
Ioweyou - Manage loans & shared expenses - Finance
IP2location - Create trend charts for site traffic - Data
Iprioritize - Manage your tasks - Organize
Ipselon - Meta search - Search
Ipubble - List & promote your website & have it reviewed - Community
Iqzone - Upload photo & text for classified ads thru your cell phone - Ecommerce
Irows - web-based spreadsheet - Office
Isabont - Keep track of your job search activities - Employment
Iskoot - Call people on your online buddylists - Communicate
Islandoo - Temporary (?) community for tv show's casting - Community
Isnooze - Laptop & iTunes mash-up as alarm clock - Organize
Isolatr - Isolate yourself from requests http://isolatrcom/ - Fun
Isporty (olim Tiredandtested) - Sports community - Community
Ispott - Mobile treasure hunt - Game
I-spy - Community based meta search - Search
Issuetrackerproduct - Deal with problems together - Organize
Istalkr - Aggregate & organize rss services that you & your friends subscribe to - RSS
Istockphoto - Buy & sell images - Images
Italknews - Digg news & get paid for it - Rate
Iterating - Wiki-like software guide - Publish
Itlinkz - Network of social networking sites - Marketing
Itredux* - Concise categorized database of Office 2.0 companies - About
Itsastart - Personal portal - Startpage
Itsdex - Trading game in 2.0-related shares & bonds - Game
Itsjustlunch - Lunch dating for professionals - Date
Ittoolbox - Community for IT professionals - Community
Itunestreemap - Track the iTunes Top 100 songs as they move up and down the charts - Data
Itzle - Chat with other site visitors - Communicate
Iugen - Publish your profile & see how connected you are - Community
Iupload - Enterprise multi-user blogging, wiki, cms - Publish
Iusethis - Digg, discover, check & organize your apps - Rate
Iwantto - What do you want to do or make online? - About
Iwiw - Find your friends - Community
Izimi - Share everything, from your pc - Multimedia

Update 070527.