Many voucher code web sites use a click-to-reveal format, which requires the web site user to click to reveal the voucher code. The action of clicking places the cookie on the website visitor's computer. In the United Kingdom, the IAB Affiliate Council under chair Matt Bailey announced regulations that stated that "Affiliates must not use a mechanism whereby users are encouraged to click to interact with content where it is unclear or confusing what the outcome will be."
(a) Reservation of Rights. We reserve all right, title and interest (including all intellectual property and proprietary rights) in and to, and you do not, by virtue of the Agreement or otherwise, acquire any ownership interest or rights in or to, the Influencer Page, the Influencer Page URL or information and materials on the Influencer Page. You will not take any action that conflicts with our rights in, or ownership of, the Influencer Page. Amazon reserves all rights to determine the content, appearance, functionality, URL, and all other aspects of the Influencer Page, including through the display of (i) advertising materials on the Influencer Page, without compensation to Influencer, and (ii) disclosure (by text, link, icon, or otherwise) regarding Influencer’s participation in the Influencer Program.
Now most affiliate programs have strict terms and conditions on how the lead is to be generated. There are also certain methods that are outright banned, such as installing adware or spyware that redirect all search queries for a product to an affiliate's page. Some affiliate marketing programs go as far as to lay out how a product or service is to be discussed in the content before an affiliate link can be validated.
In 1994, Tobin launched a beta version of PC Flowers & Gifts on the Internet in cooperation with IBM, who owned half of Prodigy. By 1995 PC Flowers & Gifts had launched a commercial version of the website and had 2,600 affiliate marketing partners on the World Wide Web. Tobin applied for a patent on tracking and affiliate marketing on January 22, 1996, and was issued U.S. Patent number 6,141,666 on Oct 31, 2000. Tobin also received Japanese Patent number 4021941 on Oct 5, 2007, and U.S. Patent number 7,505,913 on Mar 17, 2009, for affiliate marketing and tracking. In July 1998 PC Flowers and Gifts merged with Fingerhut and Federated Department Stores.