The game of hunting down history gets tricky. With so much information available it’s almost comical to think about how much is being lost, specifically because technology is sprinting along so quickly. Publishers, seeking immediate economic gain are doing a lot to ensure that what they produce will be lost to time, courtesy of DRM.
See Bit Rot
This is an interesting problem that has come up in several ways and through several forums. There’s a pretty solid, half-joke, that the beginning of the technology age is going to end up being the second “Dark Age” because there will be an interim period between now and a sustained solution during which all recorded information is going to be essentially lost within the span of a hundred years. Same problem as the “Dark Ages,” not that nothing was happening, but that the methods used to record information shifted, generally to less hardy media, and that the warehouses of data were lost.
And let me just point out, as so many aptly do, that the Economist uses Drupal.