User blog comment:Aok/CHIMA ONLINE BETA KEYS, NOW AVAILIABLE(Requires Facebook to get Key)/@comment-4257955-20130608021740/@comment-24021662-20130610162959

Actually, you don't need a FB; Just an email. They were giving out around 5k keys on Gamestop.com if you subbed to their newsletter, but that was around 4 days ago.

I got mine that way. :P