It has been no secret to most in the SEO industry for quite some time that Google’s search algorithm does not include the content of meta keywords tags. Now it is coming straight from the horse’s mouth. It was recently posted on the Official Google Webmaster Central Blog, and re-iterated by rockstar Google engineer Matt Cutts on his blog that Google does not care what your meta keywords are.
This does not mean, however, that all meta tags are ignored by Google. Snippets from meta description tags are still often displayed on Google search result pages. It also does not mean that other search engines ignore the meta keywords tag. What it does mean is that the notion that stuffing keywords in the meta keywords tag will somehow help a website rank for those keywords in Google can officially be put to rest.