There are 2 referral contest at:
http://www.btc4free.org/?ref=nguyenducquy
http://bitcoin-bux.com/?ref=nguyenducquy

Use my ref links to registry and mail me your bitcoin address + your login name.
If i win, i will share prize for all of you.
Follow my fanpage (in vietnamese but you can inbox or mail me for futher information).
Ref link: 
http://www.btc4free.org/?ref=nguyenducquy   1st prize $100
http://bitcoin-bux.com/?ref=nguyenducquy      1st prize $1000
Mail: beenboy158@gmail.com
Fanpage: https://www.facebook.com/freebitcoinseveryday123

Together, we can win this contest