There is extreme SEO that works then there is extreme SEO that does not. There is also extreme SEO which is just plain illegal in the eyes of the search engine. This refers to things like:

Keyword spamming - using your main keywords too many times on a page
Hidden text - hiding keyword text by making it the same color as your background
Doorway pages - an old tactic used by spammers to show search engines one page and visitors another[…]

A minisite is a term for a small website which has a tight niche focus. Usually minisites contain just a handful of pages on a particularly small niche. Many large websites have spin off sites that focus on just one portion of the niche in the form of a minisite.
Extreme minisite creation involves thinking outside […]

Many people are stating a case that SEO is ‘dying’ but is this really true? It is hard to argue against optimizing your site for search engine results. Indeed, how else go Google, Yahoo, MSN and other search engines determine which should ranks where? Although they are all different, it generally comes down to factors […]

Extreme SEO can either result in extreme success or extreme failure, depending upon how you go about it. Extreme SEO need not necessarily delve into the world of black hat SEO which is a world of deceptiveness and illegality in terms of search engine compliance rules.
SEO can refer to a myriad of various tactics that […]