Industry WIKI

Facebook Credits was a virtual currency that enabled people to purchase items in games and non-gaming applications on the Facebook Platform. One U.S. dollar was the equivalent of 10 Facebook Credits. Facebook Credits were available in 15 currencies including U.S. dollars, pound sterling, euros, and Danish kroner. Facebook was hoping eventually to expand Credits into a micropayment system

Zero-rating is the practice of providing Internet access without financial cost under certain conditions, such as by permitting access to only certain websites or by subsidizing the service with advertising or by exempting certain websites from the data allowance.