Wikipedia: Thomas Barnett
Wikipedia is a good source to get a quick read on Tom. (Yes, I'll set aside some time this weekend for updating.)
However, the best short piece explaining what Tom is about may be Ann Scott Tyler's Washington Post article, ""A Brain Pentagon Wants To Pick".
Hmmmm. . . on the other hand, this piece at PeaceJournalism.com illustrates understanding, too: Paul Baan: Social Venturing as a new tool for Peace and Stability
What do you think?