Someone in here said that the term 'seo' in a website makes that the website is flagged by the search engines.
If so, how do professional SEO's go about to market themselves ? What will all these websites online filled with SEO Specialists ?
Actually, there is nothing wrong with SEO in the eyes of the search engines and they won't "flag" a site for using the term. Search engines even have guidelines for acceptable practices for how to help your site more search friendly, which is what SEO is all about. SEO's are simply individuals or companies that specialize in understanding how to make websites more search engine friendly.
One can cross the line of acceptable practices, however, by employing tricks that fool the search engines into thinking visitors will find the information they seek on a webpage, when in fact, they will not.