Keywords are dead. Search engines don’t use them anymore.
Okay, you got me. Keywords are not dead, but how we use them to help our websites has dramatically changed over the years. The “keywords” meta tag is no longer an item search engines give a lot of weight.
Google doesn’t look at the keywords meta tag at all. They even have a blog post about it. Yahoo! doesn’t even mention it in their Search Quality Content Guidelines, “Metadata (including title and description) that accurately describes the contents of a web page.”