The italized text is what I got pulled up for, yet it was nowhere to be seen in their TOS, after later revision. So, be sure to review the above "secret" rules, as well.
Publishers may not place Google ads on pages that violate Google’s webmaster quality guidelines (Webmaster Guidelines - Webmasters/Site owners Help
). While we've included the following excerpts from these guidelines, we recommend that you take the time to review them in their entirety.
* Make pages for users, not for search engines.
* Don't employ cloaking or sneaky redirects.
* Don't load pages with irrelevant words.
* Don't create multiple pages, subdomains, or domains with substantially duplicate content.
* Don't participate in link schemes designed to increase your site's ranking or PageRank.
* Avoid "doorway" pages created just for search engines, or other "cookie cutter" approaches such as affiliate programs with little or no original content.
* Avoid tricks intended to improve search engine rankings. A good rule of thumb is whether you'd feel comfortable explaining what you've done to a website that competes with you. Another useful test is to ask, "Does this help my users? Would I do this if search engines didn't exist?"
* If your site participates in an affiliate program, make sure that your site adds value. Provide unique and relevant content that gives users a reason to visit your site first.