https://www.pymnts.com/news/2011/facebook-credits-expands-to-outside-sites/
Facebook Credits Expands to Outside Sites
facebook creditsexpandsoutsidesites
https://bitcoinmagazine.com/culture/social-media-virtual-currencies-1334614748
Social Media Virtual Currencies, Facebook Credits And The Internet
Apr 17, 2012 - As little as five years ago, virtual currencies only had a very niche role in the internet ecosystem. You might see one used to maintain the internal economy
social mediavirtual currenciesfacebook creditsinternet
https://www.livescience.com/8417-facebook-credits-7-11-stores.html
Facebook Credits Now Available at 7-11 Stores | Live Science
Aug 4, 2010 - PayNearMe has launched a payment system that allows Facebook game players to buy credits for virtual goods at local 7/11 stores around the country.
facebook creditsnow availableat 711stores
https://www.journaldunet.com/retail/1016541-la-monnaie-virtuelle-facebook-credits-en-vente-chez-walmart/
La monnaie virtuelle Facebook Credits en vente chez Walmart
la monnaiefacebook creditsen ventevirtuellechez