Coinbase (Free $5 to each person)

Coinbase is a bitcoin wallet that pays you $5 for every person you invite.
All you do is create an account, verify your email address and then link your bank account (you can also use some pre-paid debit cards)
Once the account is setup you and the person who invited you gets $5.
Go here and setup your account https://www.coinbase.com/join/557327eae01986672c000109
Then just share your link with friends.