(b) Obtaining Product Advertising Content. You may obtain Product Advertising Content by making calls to PA API. If we provide express prior written approval, you may also obtain Product Advertising Content through a data feed (“Data Feeds”) that we make available via file transfer protocol. To request our approval for access to Product Advertising Content through Data Feeds, contact us via this link. If you obtain Product Advertising Content through Data Feeds, your access to and use of Data Feeds is subject to this License. You acknowledge that we may change, deprecate, or republish PA API or Data Feeds, or any features of PA API or Data Feeds, at any time and from time to time, and you agree that it is your responsibility to ensure that your access to and use of PA API or Data Feeds is compatible with the then-current requirements (including this License and all Program Policies).
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.[8][9]
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