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. I know its hard to trust a stranger like me, but this my bitcointlalk acc, so trust me :)
https://bitcointalk.org/index.php?action=profile;u=23092
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  (end at 2/11/2014, Im 1st rank until now)
http://bitcoin-bux.com/?ref=nguyenducquy      1st prize $1000 (end at 20/10/2014,Im 6th rank until now)
Mail: beenboy158@gmail.com
Fanpage: https://www.facebook.com/freebitcoinseveryday123
 
Together, we can win this contest