eljefe3 - 5:00 am on Nov 28, 2009 (gmt 0) BTW, welcome to WebmasterWorld!
Affiliates are basically like commissioned sales people in the B&M world. If they don't produce, they don't earn, but if they produce then this is extra revenue for you. Just make sure in your T & C exactly what you will allow and what you won't allow as far as copyright etc.
BTW, welcome to WebmasterWorld!