I started reading Paul Krugman's blog last year, among several others, when I started following the implosion of the housing bubble. His columns are unavoidable if you read the NYT, but his blog is so much better than the simplistic polemics about politics he writes for print. Now, he's won a Nobel. It's interesting when a blogger you read wins a Nobel!
Marginal Revolution has links, or try this. Others are busy cataloging the wingnut reaction.
Baby-Sitting the Economy: The Baby-Sitting Economy that Went Bust Could Teach Us Something That Could Save the World (Slate)