TechCrunch by Erick Schonfeld:- Facebook is a famously difficult place to make money. Despite the popularity of the social network, most ads go for pennies per thousand impressions (CPMs). Even Social Media, a Facebook ad network that is able to get effective CPMs of about 50 cents, has only paid out a little more than $8 million total to application developers since it launched a year ago. Yet AllFacebook claims: (continue reading…)