Address: http://www.prizerebel.com/index.php?r=182354
I have stumbled on a site (Prize Rebel) which gives away NX cash cards, WoW codes, G-coins, Wii's, mp3 players, and more. If you are looking for prizes such as NX cash or WoW codes, you don't even need to post your real information since you will receive these codes by email!
Basically, how this site works is that you must complete surveys or do other offers. Each time you do an offer, points are added to your account. Different prizes cost a different amount of points. For example, an NX Cash Card code costs 10 points. 10 points can be earned in as low as 2 hours by doing offers! Keep in mind that you get your points from 5-10 minutes after doing an offer, so be patient. Also, larger prizes such as an XBox 360 costs more points. If you buy virtual money for a game the code is sent by email, which is great since you do not have to post real information on the site. Also, when buying things such as a month of WoW, or Wii Points or the Wii virtual channel, or virtual currency (NX cash, etc) they are sent by email. This website supports almost all MMORPGs, so if you need something such as Astros or Club Penguin points they have it too.
This site is trusted, and it works. They make their money back by getting paid by the survey companies that get their surveys done thanks to them, and by all the other companies who get new users. Basically, you are working for prize rebel and in exchange they pay you, in prizes. You can also get money sent to your paypal if you prefer. I suggest you bookmark prize rebel, and regularly complete offers to accumulate points.
So, check it out at http://www.prizerebel.com/index.php?r=182354
Good luck, and enjoy.