There's apparently some drama happening between Facebook and Zynga, maker of the wildly popular social games Farmville, Cafe World and Mafia Wars.
The beef is primarily about Facebook forcing game developers to use Facebook Credits for in-game purchases, says TechCrunch's anonymous sources. Facebook takes a 30 percent cut of all Credits transactions, and Zynga makes a lot of money by selling items that speed people's progress through the game. You can see why there's tension.
Clickthrough to PC Magazine to read the whole article.