Alexandria Digital Library Project
http://www.alexandria.ucsb.edu/
The project began in 1995 with the development of the Alexandria Digital Library, a working digital library with collections of geographically referenced materials and services for accessing those collections. The Alexandria Digital Library Project is headquartered on the campus of the University of California at Santa Barbara.
The Center for Advanced Spatial Technologies
http://www.cast.uark.edu/
The Center for Advanced Spatial Technologies (CAST) is an organization within the University of Arkansas that has brought together researchers dealing with the fields of gis, gps, archeology, geoscienses, etc
to develop and maintain information for the scientific community.
SUNY Geosciences Collection
http://www.sunysb.edu/libmap/geocoll.htm
The Geosciences Collection is located in the Melville Library. It shares the North Reading Room in that building with the Engineering Collection, the Map Collection, the Biology Collection, and the general science collection. The primary purpose of the Geosciences Collection is to serve the research and teaching needs of the Geosciences Department of the State University of New York at Stony Brook.
The Institute of Earth Sciences Library
http://earth.es.huji.ac.il/~eslib/main.htm
The Institute of Earth Sciences Library at The Hebrew University of Jerusalem
was created by the merger
of the former Geology and the former Atmospheric Sciences libraries.
The collection numbers some 60,000 physical volumes. In addition to
books and serials, there are small collections of aerial photographs,
geological maps, slides, and reprints
Branner Earth Sciences Library and Map Collections
http://www-sul.stanford.edu/depts/branner/information/tips.html
Located at Stamford University, the branner Earth Sciences Library provides a wealth of information on Earth Sciences and mapping. The link above brings you to the main link and search page. Good source of information check it out.