Just Say No to SEO Spam  

Describes several disreputable search engine optimization practices for Web designers to avoid.

Wilkinson, Theresa A. Intercom (2004). Design>Web Design>Search Engine Optimization>Spam

Search Engine Spam

Hidden text, doorway pages and mirror sites are all examples of search engine spam and could get you banned from the search engines - make sure your site avoids all of these!

Townes, Frederick. Webcredible (2007). Design>Web Design>Search Engine Optimization>Spam