Technorati Top 100 - Popular Categories

20 Technology Blogs
02. Boingboing
06. Lifehacker
07. Ars Technica
13. Mashable
14. Google Blog
17. How to Change the World
27. Gigazine
28. Read/WriteWeb
32. O'Reilly Radar
33. Instapundit
34. Scobleizer
35. GigaOM
48. Smashing Magazine
50. TUAW
51. Kottke
53. Valleywag
59. Make
68. Microsiervos
71. Micro Persuasion
76. Mac Rumors

13 Web (!) Blogs
04. TechCrunch
13. Mashable
14. Google Blog
28. Read/WriteWeb
38. A List Apart
42. Something Awful
48. Smashing Magazine
64. Google Blogoscoped
65. Joel on Software
68. Microsiervos
90. DownloadSquad
95. Google Operating System
99. Signal vs. Noise

13 Politics Blogs
08. Daily Kos
15. Beppe Grillo's Blog
16. Think Progress
19. Crooks and Liars
30. Hot Air
41. Little Green Footballs
52. TPM
58. Hugh Hewitt
71. Jihad Watch
75. NewsBusters
77. Corner, The
85. Captain's Quarters
98. The Daily Dish

9 News Blogs
05. The Huffington Post
22. Treehugger
29. Gawker
40. Topix
41. Little Gr
77. The Corner
81. Deadspin
92. Gothamist
97. The Blotter

9 Software Blogs
04. TechCrunch
06. Lifehacker
14. Google Blog
54. Mozillazine
55. Lifehack
56. WordPress Blog
64. Google Blogoscoped
65. Joel on Software
95. Google Operating System

8 Gadgets Blogs
01. Engadget
02. Boingboing
03. Gizmodo
27. Gigazine
68. Microsiervos
80. Matt Cutts
89. Tech E Blog
100. CrunchGear

8 Gossip Blogs
10. TMZ
20. Perez Hilton
29. Gawker
46. The Superficial
53. Valleywag
60. Wonkette
62. Go Fug Yourself
93. Overheard in New York

8 (Highly) Personal Blogs
09. Post Secret
19. Dooce
47. Xujinglei
69. Binary Bonsai
73. Xiaxue
78. Nakagawa Sho
79. Zefrank
83. Octpob

7 Marketing Blogs
12. Seth Godin's Blog
17. How to Change the World
67. Search Engine Land
70. Shoe Money
71. Micro Persuasion
80. Matt Cutts
88. Gapingvoid

6 Corporate Blogs
14. Google Blog
32. O'Reilly Radar
38. A List Apart
54. Mozillazine
56. WordPress Blog

4 Usability Blogs
21. Creating Passionate Users
38. A List Apart
51. Kottke
99. Signal vs. Noise