Alexa provides information about websites including Top Sites,<BR>Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Information<BR>and Search Analytics for SEM and SEO optimization. The Alexa Toolbar is a browser add-on<BR>that shows data about sites as you surf the web
Alexa web search -- a new kind of search engine. With traffic rankings, user reviews and other information about sites, Alexa is a web site discovery tool. Alexa web search combines the powerful Google search engine with Alexa's comprehensive site information and puts it all inside an Amazon.com interface.