StumbleUpon - it's similar to pinterest! (I signed up about 10 minutes ago and have to admit, I might have another addiction!)
2. After you sign up, click here to get your own referral link.
3. Get 5 friends to sign up under your link and you will earn $10 in an Amazon gift card and a chance to win an iPad! ($10 referral credit is only good for a couple more days - so go now!!)
Thanks I Am a Couponer!