Ranging from options such as CPA [the generic term cost per action] When the internet first become commercialized, it was these advertising networks that were at first popular. Pushing millions of banner impressions for the common 468x60, many grew larger than they could feasibly become.
As the internet matured, many became bankrupt due to factors ranging from insufficient capital to poor business plans.
Yet there are still advertising networks that remain, and successful new ones do emerge at times.
Following are reviews on www.webmasterstop.com * for specific affiliate networks:
AllClicks Review - Added June 4, 2003
Commission
Junction - Added June 26, 2002
clickXchange Affiliate Network - Added June 26, 2002
Advertising Networks
fastclick Advertising Network - Added June 26,
2002
focusIN Advertising Network - Added June 26, 2002
Search Based [PPC]
Kanoodle Review - Added June 16, 2003
Overture Review - Added June 26, 2002
goClick PPC Review - Added June 26, 2002
Popups
PopupTraffic Review - Added August 28, 2002
fastclick PopUnders - Added August 19, 2002
ExitFuel Popup Review - Added August 19, 2002
* -
www.Webmasterstop.com is an excellent source of information
and reviews on this subject.