If part of your affiliate strategy is to allow brand rights to select PPC affiliates (either as direct to merchant PPC or as a complementary PPC campaign through a landing page) you will have to consider the commission levels that are paid to these affiliates. If the commission paid on the sale does not cover the affiliates click costs with additional profit margin, then a PPC campaign would not be a viable offer for the affiliate.
The concept of affiliate marketing on the Internet was conceived of, put into practice and patented by William J. Tobin, the founder of PC Flowers & Gifts. Launched on the Prodigy Network in 1989, PC Flowers & Gifts remained on the service until 1996. By 1993, PC Flowers & Gifts generated sales in excess of $6 million per year on the Prodigy service. In 1998, PC Flowers and Gifts developed the business model of paying a commission on sales to the Prodigy Network.