Have you heard?
After years of speculation, it’s official: Google’s Matt Cutts stated that Google’s indexing formula ignores the ‘keywords’ meta tag. What does this mean? The meta keywords tag does nothing for your position on Google. However, they are still used by many other search engines and directories, so don’t be too hasty and delete them from your web pages. As I have mentioned before, having some extra meta tags in your site code is not going to harm you, so it is not a “bad” idea to keep up with your meta keywords.