Geography & Geology

Geography (LII) http://lii.org/pub/topic/geography Quality geography links from the Librarians’ Index to the Internet.
Portals to the World http://www.loc.gov/rr/international/portals.html A list of links to websites about foreign countries, maintained by the Library of Congress.
Southern California Earthquake Data Center http://www.data.scec.org/ Southern California Earthquake Data Center.
U.S. Geological Survey Library http://library.usgs.gov/ The library from the United States Geological Survey (USGS), this online catalog contains over 325,000 records. An online reference service is also available through this link.