Yuwie
Capazoo
Myviewin
Narple
Lazzeo
Bizpreneur
Rotatrix
Friends for Cash
Gizter
Mylot
ValuePay
Zion 5
Bizfriends
BizzyBlogs
Yagatta
Zenzuu
Apsense
Zubby
Quassia


The more you join the more you can earn

Here is the list

Join one or more of these sites and once inside look for a club called Referral Training.
Follow the instructions there and you will become a pro referral hunter in no time!