Technorati's newly released Attention Index.
The company usually measures a blog's influence based on links to blog posts. The more links a blog has, the higher it ranks on Technorati's list of authoritative blogs. But the new Attention Index measures where the bloggers get their information from in the mainstream media. Technorati says there is a symbiotic link between blogs and mainstream media sites, since bloggers often link to media sites as the primary sources of their information.
Bloggers primarily source each other, at about 61 percent of the time. But 46 percent of the time, they link to non-blog web sites. Here is the list of the media web sites -- in order of most influential -- that bloggers most often link to.
1. YouTube 2. New York Times 3. BBC News 4. CNN 5. MSN 6. Guardian 7. Washington Post 8. Yahoo! News 9. Reuters 10. Los Angeles Times 11. Telegraph 12. MSNBC 13. The Wall Street Journal 14. Time 15. Wired 16. USA Today 17. boston.com 18. FOX News 19. Daily Mail 20. ESPN 21. CBS News 22. Financial Times 23. Forbes 24. San Francisco Chronicle 25. Chicago Tribune 26. The White House 27. New York Post 28. New York Daily News 29. International Herald Tribune 30. PBS 31. Salon.com 32. BusinessWeek 33. Slate 34. Newsweek 35. New York Magazine 36. Economist.com 37. CBC 38. San Francisco Examiner 39. MarketWatch 40. Chicago Sun-Times 41. US News & World Report 42. Houston Chronicle 43 Yahoo! Sports 44. Entertainment Weekly 45. Seattle Times 46. E! Online 47. People 48. Science Daily 49. Style 50. The Christian Science Monitor