You get ~
* 400 Free Prints (50 4x6 and 50 5x7 each month for the next 4 months)
* 8x8 Photo Book (20 pages) available starting May 31 and expiring Dec. 31
Just for registering. If you refer friends, you can get 200 prints per friend until May 13th. I just looked & they print on Fuji Paper which is very good. If you blog, you can right up this offer to get referrals, you can also email your friends. LMK if you sign up, if you click here I will get the referral pics :)
Sign up is very easy. In your welcome email you get a ton of coupons for cool products like mousepads, etc.