20 Sep 11 2:25 am
Some meta tags are still used, some were never used, some are used differently to how many assume they would be.
The description meta tag was written for humans. The description meta content will still be used as a snippet in most engines when the search words used to return this page in search results occur in the meta content. While The robots meta tag is use only when you want to exclude search engine from particular actions. And the refresh meta tag is for controlling redirection on sites where you don't have access to controling server-side redirection.
That's almost it for meta tags that have a direct use and value to SEO, except for using your meta content to correctly identify the character set and language used.