http://m2wa2.blogspot.com/2013/05/the-social-media-advertising-ecosystem.html

The media constellation has become increasingly fractured. The Web produced the initial fissure, but mobile created new cracks in the landscape. Today, no single medium earns more than 45% of our media consumption. How can you solve this problem? Social media offers a solution. Social networks like Facebook and Twitter are daily destinations for millions of consumers. Increasingly, their ad products offer targeting according to specific demographics, social connections, interests, and habits.

In a new report from BI Intelligence, “we analyze the state of social media advertising and where it is heading, offering a comprehensive guide and examination of the advertising ecosystems on Facebook and Twitter, offer a primer on Tumblr as an emerging ad medium, and detail how mobile is an important part of this story as mobile-friendly as native ad formats fuel growth in the market.”