Recently, Facebook credited users with 10 Facebook Credits to use on games offering pay-to-play perks, from more land on Farmville to tokens to fishy fun on Happy Aquarium.
Want to find your free Facebook Credits? Click the "Account" tab in the upper, right-hand corner of Facebook, and click "Account Balance" to check out your own available credit.
Out of credits? MSNBC reports PayNearMe bill payment kiosks in 7-Eleven stores now feature Facebook Credits for purchase; simply select your desired amount, take the receipt to the cashier, and pay for your credits in an actual brick and mortar store!
--Brandon De Hoyos, Guide to IM

Great to know that. My friends were buying credits like that for money from some websites online.
I will get some credits my self.
Thank you much
What apps give you facebook credits? I recently obtained 10 credits for starting Bejeweled Blitz. I was curious if anyone knew what other apps you can get credits from.
Peter, if you go to the Facebook Games page, you will see a section entitled “Featured Games.” Most games on Facebook now accept and offer credits.
Thanks for reading About.com!
–Brandon