I participated in this charity and got this infinite crisis code as a thanks but i already have beta access.
Be one of the first to play Infinite Crisis
Enter this Beta Key after creating your profile:
ERAXLCPRR3FJMPFZAY9CAZDEH
I ilke this site because there are a lot of good users around and very helpful. Overall the community here is way better than a lot of the other gaming sites out there.