The WayBack Machine

The WayBack Machine in an archive of more than 299 billion webpages.  From the very first version of Google or wikipedia  to through to collections of the ‘pioneers‘ and the means to look-up most websites historically, to resource content that may have otherwise changed or is no-longer available on the web.

A Plugin for Chrome is also available which helps to easily find the latest copies of webpages that may have been removed or taken down.