While coop sponsoring is very important to built a list of affiliate quickly, by other side motivating this kind of list require higher content value into contact email. Mostly many coop sponsoring get people who use a click-join-and-forget action. Activating this kind of prospects is the hardest work to do and need persistence and doublle optin subscription. So we may loose many subscribers but some of them will rethink their web behaviour and could turn into active affiliate.