Many companies that claim they are experts in search engine optimization insist on outdated concepts and rumors that look good in paper, but are really just myths. Like myths in the real world, these contain more fiction than fact. Let's dissect two of the more common myths in the search engine optimization world, and try to learn from them.

Myth: Search engines give a lot of weight in the meta-tag keyword headers of your site; therefore you should optimize these over anything else.
Fact: Many scrupulous search engine optimization companies will sometimes ask for a premium optimizing your meta-tag keywords, telling you that there is a certain algorithm used and that they are the only ones who know of this special technique. While that may be true for around 2005, that certainly isn't true today.

Back in the early days of search engines, the only way a search engine can gauge the relevance of a page is by parsing the text on the page. Sometimes the page might contain unparsable content, or may be part of a series of pages talking about a certain topic in general but does not mention that topic in the page itself. Therefore the search engines some sort of "hint" as to what the page is about. Thus the keyword meta-tag is born.

Of course, search engines have already evolved and use other means of gauging page relevance such as off the page factors (links from other sites, search result hit rate, etc.) Moreover, some webmasters had the idea of stuffing the meta-tag with irrelevant keywords designed to get a good rank on search results that have nothing to do with their pages. Because meta-tags are easily (and have been) abused, search engines like