Design and Usability Discussion
Introduction
There are many things in life that you CAN do, but SHOULDN'T do. Most of the things you shouldn't do will cause you some grief later on! The same holds true in the field of Search Engine Optimization. There are some search engine optimization techniques that "work" but they actually try to use the system against itself, instead of working with the legitimate use of the system.
Definition From Wikipedia.com
"Another class of techniques, known as black hat SEO or Spamdexing, use methods such as link farms and keyword stuffing that degrade both the relevance of search results and the user-experience of search engines. Search engines look for sites that employ these techniques in order to remove them from their indices."
Black Hat Practices Resources
There are many excellent articles and discussions about Black Hat SEO practices. There are also many sites that will call you a wimp and a crybaby, if you don't use these techniques because it's all about greed and making a buck!