I found the best site: (i hope, you use my ref-link)
http://www.ayuwage.com/?reg=185993
On this site you get credits for view adds, auto surfing, tasks, surveys, e-mails, searching and more...
With the earned credits you can rent refferals or you depose it to your paypal account.

http://www.ayuwage.com/?reg=185993
If you use my link, you get your normal earnings, but i get a bonus of 10% of your earnings. 
I wanna give 50% of the additional earnings, because you use my link :D