Here is a great , unbelievable offer I got from a friend ,
Allow your customers to purchase your products by buying products from your sponsors and get yours as a bonus .. You get paid the amount you requested or even more .. ! and they get it for free ... use my link ;)
I made a web site for it :
http://www.scorewinner.com << here is more info and registration info
it's really a great , recommended and spreading as fire new service !!!