A columnist at the Guardian wants help from the Web to determine the best science sites on the Web he and others there don't currently know about. He put his personal favorites in the article and, not surprisingly, it was heavy on the political/cultural writers in science blogging but I suppose that is why they are asking for help; the shrillest and most aggressive self-promoters (and some are owned by corporate media companies) will be known but not necessarily the best.
If you want to perhaps see your name in The Guardian you can get someone to nominate you, or do it yourself.
http://www.guardian.co.uk/science/blog/2010/jun/03/wanted-best-science-blogs
And don't forget to vote for the Scientific Blogging nominee at 3 Quarks Daily so maybe Richard Dawkins will give him a thousand bucks.
