Check out this interview with the president of GreenZap. The second part of the interview with him (part three in the archive) is where he shoots himself in the foot. None of the money they claim to give you for signing up is real, its not like you can move it to bank account, and I wouldn't give them that information after hearing this interview. Also, if you used the same password for Greenzap as you do for any other payment processor accounts, I would change it....fast.
