"The Internet Archive is building a digital library of Internet sites and other cultural artifacts in digital form." Check out the Wayback Machine. It's very cool, especially if you have your own web site. Load your URL and see if any earlier versions have been archived.
What's even more fascinating is the Internet Moving Images Archive: Movie Collection. "This collection contains movies that the Prelinger Archives has digitized and donated to the Internet Archive. The films focus mainly on everyday life, culture, industry, and institutions in North America in the 20th century. This is the first time that most of the films have been available to the public. They are "open source movies" -- available for viewing at no cost and with few restrictions. About 1254 films are now online."
There are certain codecs and decoders you need to view the movies, but it's worth the effort. You must see Beginning to Date, from 1953.