How Much Is a Facebook Fan Really Worth?

Facebook Growth By Age Group: Share of College-Age Users is Declining - O'Reilly Radar

Delete 10 Facebook friends, get a free Whopper | The Social - CNET News

How Facebook is Gunning for Google (And Killing SEO) | Copyblogger

The Dam Just Broke: Facebook Opens Up to OpenID - ReadWriteWeb

In the World of Facebook - The New York Review of Books

Facebook Groups Vs Pages: The Definitive Guide

Conversations About The Internet #5: Anonymous Facebook Employee - The Rumpus.net

Active Facebook Users By Country - O'Reilly Radar