If you are a webmaster you probably heard of
Google Webmaster Tool. Both Yahoo and Bing have their own versions called
Yahoo SiteExplorer and
Bing Webmaster Central. With them you can check how your site is indexed (
Webmaster Tool), get detailed statistics (
Analytics Tool), earn money (
Google AdSense) and more. This is my very simple plugin without any complicated code. It adds your requested meta tags into header and java script code to footer of your blog.
“All in One Webmaster” WordPress Plugin is reached 300,000 downloads.