References
- TechCrunch, "Facebook No Longer The Second Largest Social Network", 2008. 6. 12.
- TechCrunch, "As It Celebrates Its Sixth Birthday, Facebook Surges to 400 Million Users", 2010. 2. 4.
- OpenSocial - Google Code, http://code.google.com/apis/opensocial
- Facebook Statistics, http://www.facebook.com/press/info.php?statistics
- Inside Facebook, "RockYou Acquires Pieces of Flair, Speed Racing", 2008. 7. 11.
- TechCrunch, "Zynga Raises $29 Million B Round (Led By Kleiner Perkins) and Buys Virtual-World Facebook App YoVille", 2008. 7. 22.
- TechCrunch, "Not Playing Around. EA Buys Playfish For $300 Million, Plus a $100 Million Earnout", 2009. 11. 9.
- TechCrunch, "Chris DeWolfe Makes His Move - Raises Big Round, Acquires Gaming Platform MindJolt", 2010. 3. 3.
- TechCrunch, "Playdom Acquires Facebook Game Developer Offbeat Creations", 2010. 3. 3.