Berkley Earth Surface Temperature Analysis of land surface temperature records going back 250 years
Future Science Opportunities in Antarctica and the Southern Ocean (National Academies Press)
Geology News and information about geology
Scott Polar Research Institute "The world's most comprehensive polar Library and Archives".
USGS National Geologic Lexicon Database: Geolex Geolex, a free index to publications on named geologic rock units in North America
USGS National Geologic Map Database A free index to maps and geospatial data related to the geological sciences.
MetaLib, a service of the Catalog of U.S. Government Publications (53 government databases, subject gateways, digital repositories and e-journals)
OAIster More than 19 million digital resources from over 1,000 organizations developed by the University of Michigan.
Science Portal (U.S. Government)
USGS Library (Geological Survey)
WorldWideScience.org is a global science gateway comprised of national and international scientific databases and portals.