Possibly The Coolest Webiste Ever...

http://www.bibalex.org/english/initiatives/internetarchive/web.htm

This is a site that has been archiving the WHOLE internet since 1996. You type in the page you would like to see (google, myspace,) and you can see what these websites looked like before they were famous. Try some of the popular websites from today. You will be VERY surprised with how they once looked.