Wow. Links from big-name bloggers really get attention. The original post in this series got a noticeable spike in pageviews, and some people even clicked through to the original Brad Delong interview.
It also sparked some serious discussion among academic bloggers, which Noah Smith (Noahpinion) chronicled. I haven't followed it all, though I do note that Prof. Williamson continues the freshwater tradition of contempt for critics from the saltwater school by calling Prof. Krugman deranged.