Networked Digital Library of Theses and Dissertations (NDLTD)
This initiative was begun by Virginia Tech, but it has now spread to
roughly 200 institutions around the world. It aims to make theses or
dissertations freely available on the Internet. One can either search
or browse for them. In addition, there is information about joining
this network and other information about the initiative.
http://www.ndltd.org/