Brad DeLong advises:

Offshoring is a very big deal, not for the next five years, but for the next fifty.

Based on the popularity of Tom Friedman's latest book, many of you apparently agree.  If you are one of them, here are a couple of sites you might want to keep your eyes on: Outsourcing Times and Outsourcing Blog.  These are run by proprietary concerns -- and my notice does not constitute an endorsement of whatever they are selling -- but that doesn't make them uninformative.  You can also find a ton of links at Blogspot's Outsourcing/Offshoring Information and Resources Subject Tracer

(P.S. My friend and colleague Eric Fisher offered this recent review of Friedman's book in the Cleveland Plain Dealer.)