SuperPoints has changed how they do signups now, and while you need a referral to join, now everyone just has one referral link instead of expiring ones like before!
So far, I have earned $45 in Amazon GCs. This is almost too true. I have mostly earned them from my 100 SuperLucky button clicks each day. Now that I am in a routine, I earn about $10 a month from just a few minutes per day.
If you want to join me, just go to http://superpoints.com/refer/sbcashortie Signing up is free and only takes a few minutes. If you don't like Amazon, they have tons of other gift cards from places like Best Buy, Domino's and Starbucks.