Well, I'll reserve judgment until I can read a bit more of what his research turned up. That said, I'd be very surprised if there was really enough neurological research to make a solid conclusion about any truly permanent effects on cognition. No ebook versions yet, though, so I guess I'll have to wait.
Also, as per usual these days, if he is on balance negative about the effects of the Internets, then it's somewhat ironic that he has both a website and a blog...
