From July this year, companies that develop games for the Facebook may charge users to access its contents, and their systems of items. The news was given on Tuesday (26) on Blog of the developers of social networking.
According to the blog, companies like Zynga, responsible for FarmVille and Kixeye of Backyard Monsters, are already testing signature systems.
In addition, Facebook Credits, conversion system for real-money credits within the site is no longer valid due to own foreign currencies in producing games. However, those who already have the credits will have their money converted back to real currency.