Source: RankNumberOneOnGoogle.com/blog.html Writtin by John Mathews Do not use the meta keywords tag. Many people still think of this as a quick fix for SEO. It's not, It only benefits your competition!! how so? well back then search engines used to rely on Meta Keywords to guess which keywords were relevant to a webpage , now the search engines are sophisticated enought to examine the keywords in the body of a webpage. by placing Meta Tags on a page your giving your competitor a list of important keywords.can then use these keywords and buy PPC ads or optimize their own site for your important keywords. Why give them this sort of business intelligence? Having invested time and money on exhaustive keyword research to identify the important keyword phrases to use for your own SEO and PPC efforts, why on earth would you make a list of your high value keywords public? Read the whole article at: RankNumberOneOnGoogle.com/blog.html This website blog is a great source to rely on if you want to learn to get lots of free traffic to your website.
Sorry guy that is old news looks like someone is looking for traffic to there site. The next time you like to post something use the search bar on top there are many threads on this use can always add to them
While the keyword meta tag is not important for Google this tag still plays a factor in Yahoo. Also, if someone is really looking to compete with you a simple search on Google and a quick read of some of your main pages content will give them the same information a meta keyword tag would.
keywords research is easy job, you can get a great list with very low cost, maybe less than $100 Eventhrough meta tag not as important as before but it still play an important roles in SEO