In Prizerebel.com you can get online game cards for games such as:

Ijji
Maplestory
Warrock
gamersfirst
Aion
neopets
Gaia
Three rings
IMVU
TQ Games
Gpotato
Flyff
Nexon

And console stuff like:
Xbox 360 live card, headset, cooler
PC – world of warcraft, headsets, warhammer online
PS3 – playstation network card, cables

and much more!

You just need to fill out surveys! Click on the banner and off you go. Is not an easy job and you wont get what you want in just one day. But give it a week or two and you will get it!