Qads - Qype

Qads - Make some money on accepting ads on your blog or website - Marketing

Qcodo - Open source PHP framework - Software

Qelly - Meta search engine - Search

Qipit - Capture & share text with your mobile phone - Office

Qksearch - Meta search for verticals (web, jobs, etc.) - Search

Qliktech - Business performance & intelligence solutions - Software

Qlique - Real-time location aware community - Community

Qlock - Time mash-up - Productivity

Qloud - Social music search & buy service - Ecommerce

Qnalive - Microsoft's Q&A - Knowledge

Qnext* - Share all media & chat about them - Multimedia

Qoogle - Video search - Search

Qoolsqool - Digg school knowledge - Rating

Qoop - Publish & sell photos & photo products - Ecommerce

Qoosa - Social bookmarking - Bookmarking

Qooxdoo - Javascript GUI toolkit - Software

Q-phrase - Search solutions (clients) - Search

Q-sphere* - Create semantically enriched info service or market place - Software

Qtsaver - Clustered meta search - Search

Quadriot - Digg strange news - Rating

Quantcast - Site stats - Search

Qube - Search engine aggregator (client) - Search

Qucikbrowse - Combine your favourite pages in 1 email - Startpage

Quece - Conversational search - Search

Queeky* - Make drawings online & share them - Photo

Queoo - RSS to email, messenger - RSS

Questionform - Create, publish & analyse surveys - Survey

Questionize - Q&A - Knowledge

Questionville - Q&A - Knowledge

Questsin - Collaborate on dictionary - Publishing

Quibblo - Create & share your own quiz, poll or survey online - Survey

Quickbase - Project management solution - Productivity

Quickcamp - Organize your projects - Productivity

Quickeo - Store & share your files - Storage

Quickim - Mobile instant messenger (wi-fi) - Communicating

Quickmail - Email2RSS - Dead, Communicate

Quickmuse - Battle of the poets - Office

Quicknews - RSS reader (mobile) - RSS

Quickref - Search code - Software

Quicksharing - Store & share - Storage

Quicksub - Meta RSS button - RSS

Quicktoons - Create & share comics - Publishing

Quicktopic - Group message board - Communicating

Quikmaps - Doodle on & share maps - Geo

Quimble - Create, vote for & search polls - Survey

Quintura - Search strange site names - Search

Quizilla - Create & share content - Multimedia

Quizlet - Capture it, submit it, get back a pdf & share it - Office

Qumana - Edit your blog - Publishing

Qunu - Get or offer help - Economy

Quomon - Q&A for IT issues - Knowledge

Quotiki - Explore, submit, rate & collect quotes - Rating

Qvey - Create & pay or participate & get paid for surveys - Survey

Qwer - List & share your things to do - List

Qwerky - Blog on funny & strange 2.0 domain & brand names - Fun

Qwika - Search wikis - Search

Qype - Find & recommend best spots in town - Productivity