I have been doing the World Community Grid for years to cure diseases with spare computer time and in a search came across a new one with rewards that is launching in 2012. You can reserve a slot now online, just more miles and cards for free. I run 4 pc's on the WCG now so it is brainless to do!
Not a conga and no referral payments..... Just Sharing info..

CPUsage offers computer owners the opportunity to earn rewards with their idle computers. The way it works is simple: when your computer is on but unused, CPUsage will send small computational tasks, paying you for that time it takes to complete. Whether you are in individual or an organization, partnering with CPUsage is an easy way to earn valuable rewards.

Computer owners are rewarded through a point system that accounts for compute time and computer performance. These points can be redeemed for cash, goods or services such as gift cards and digital video rentals. You can even save your points for a large reward like a new computer or airline tickets. The more compute power you have, the more points you’ll earn

www.cpusage.com

Cheers!
JudyJFLA