(Found via here). University of Illinois:-
will finish archiving over a dozen famous computer games, then step back to consider where to go next with their project. These programs go back over four decades, and include a 1993 version of Doom, various editions of Warcraft, and even MIT's Spacewar! circa 1962.
We wondered, given the gaming nature of most of the software being preserved, why the venture is calling itself the Preserving Virtual Worlds project. So we called up the project's coordinator, Jerome McDonough, Assistant Professor of Library and Information Science at the University of Illinois, to ask him about the name.
According to the article here.
Great job if you can get it ;)