BSIR -- the predecessor of Government Reports Announcements and Index -- is being digitized and made available on the Web through a project at the University of Nebraska-Lincoln. So far, only a few issues from 1946 have been digitized.
TRAIL is a Greater Western Library Alliance initiative lead by the University of Arizona in collaboration with the Center for Research Libraries and other interested supporting agencies to identify, digitize, archive, and provide persistent and unrestricted access to federal technical reports issued prior to 1975.