Facebook has gotten another top app developer to agree to use its Facebook Credits payment system. The latest to do so is RockYou, the sixth biggest app developer on the social network, which says in a statement that Credits will be the “exclusive virtual currency” in its games and apps for the next five years. That follows similar agreements Facebook has reached with CrowdStar and with Zynga, although the latter wasn’t an exclusive deal.
The deals come as Facebook is finally beginning to emphasize Credits worldwide after more than a year of testing.
The payment system represents a large non-advertising revenue opportunity for the social network, since it takes a 30 percent cut of Credit sales. For now, though, Facebook is downplaying the money-making possibilities. In a recent interview with VentureBeat, Facebook Developer Network director Ethan Beard said Credits