BusinessWeek provides an interesting article examining Zynga’s precarious relationship with Facebook.
” Facebook is testing a service called Facebook Credits that would offer a single virtual currency for use on many different apps. If the social network forces app makers to use Facebook Credits, as some developers expect will happen this year, Zynga would have to pay the company up to 30% of every transaction.”
Note: For more about Facebook Credits, check out VirtualCurrencyNews.com
BONUS: SFGate – Zynga revenue reaches $600 million