So, Tsu Me: Why Facebook Is Terrified of This Virtually Unknown Competitor and What It Could Mean For the Future of the Internet

Compensating users for their content? Giving a percentage to charity? All this "crazy talk" is apparently starting to spook Facebook to the point where, over the past few weeks, links to anything mentioning the site, including pics containing only text, have been inexplicably erased from millions of Facebook’s user’s profiles.

http://www.huffingtonpost.com/david-fagin/so-tsu-me-why-facebook-is_b_8328524.html