Rakuten has now teamed with Ebates and is offering a $25 referral bonus for every friend that signs up for Ebates and makes a purchase at popular stores like amazon. There is no limit to the amount of friends you can invite, the rules only state they cant live in the same house.
This promotion ends aug 31st so invite as many people as you can before then to get $25 for each friend that signs up and makes a purchase. If you invited 2 close friends, a neighbor, the store clerk, 3 people from work, and your mom thats $200. You can share this promotion through text as well.