Okay so most people think its a scam, but GratisNetworks is real. My brother was a referral for someone who got a free iPod from them.
At the moment, the "good thing" to do, is spend 1 dollar(not too much money), for a month trial of one of the magazines or whatever. Theres a few things like it, 1 month trial for 1 dollar. Just sign up for one of those, then call in and cancle it when the month is over.
Get 10 friends to do the same, and you get a computer for 1 dollars. Not a bad deal :P
http://www.FreeDesktopPC.com/?r=16233044