Discovered Pages
[Discover] million people interacted with Facebook Applications in August http://blog.compete.com/2007/09/14/facebook-activity-breakdown-application/
(facebook attentioneconomy statistics activism) 
[Discover] Overload! By Columbia Journalism Review. Media Channel - Home http://www.mediachannel.org/wordpress/2008/11/19/overload/ (attentioneconomy trends future context)