Heavenly research link. Thanks Internet Archive

BRINGING DEAD LINKS BACK TO LIFE

We’ve all had the experience of following a hyperlink only to find a terse and rather geeky message, “404 Document Not Found.” But “not found” may not necessarily mean “gone forever.” The page you are looking for may have been archived by the Internet Archive’s Wayback Machine and be only a click away. 

Working with Mozilla, publisher of the popular web browser, Firefox, we developed a free, experimental add-on for Firefox that automatically provides you with links to archived copies of otherwise "not found" web pages available via the Wayback Machine. Please join in our experiment by enabling the Firefox add-on and emailing any feedback to info@archive.org.