Title: Athena Mineralogy Provider: University of Geneva Subject Heading/s: Mineralogy LC Class: QE Reference Category: Dictionaries Description: Mineral names link to formulas, structure, geographical location, references, and pictures where applicable. Hosted by the Department of Mineralogy, University of Geneva.

Title: Encyclopedia of Earth Provider: Environmental Information Coalition Subject Heading/s: Earth sciences--Encyclopedia LC Class: QE5 Reference Category: Encyclopedias Description: An "electronic reference about the Earth, its natural environments, and their interaction with society." Can be searched by topic, author or keyword. Added 10/2/07

Title: Geologic Time Machine Provider: Museum of Paleontology Subject Heading/s: Geological time LC Class: QE Reference Category: Chronologies Description: A time chart links to further descriptions of the era. Courtesy of The Museum of Paleontology at the Univeristy of California, Berkeley.

Title: Hazards Fact Sheets Provider: U.S. Geological Survey Subject Heading/s: Natural disasters--United States LC Class: QE Reference Category: Handbooks Description: Natural hazards (earthquakes, floods, landslides, volcanoes, etc. are discussed with specific U.S. examples.

Title: Mineralogy Database Provider: Mineralogy Database Subject Heading/s: Mineralogy LC Class: QE Reference Category: Dictionaries Description: "Alphabetical listings include synonyms of accepted mineral names, pronunciation of that name, name origins, and locality information." Data includes classifications, crystalography, optical and physical properties.

Title: Paleobotanical Collection Provider: Department of Biological Sciences at the University of Alberta Subject Heading/s: Paleobotany; Fossiles--Type specimens. LC Class: QE Reference Category: Catalogs Description: " The University of Alberta is proud to be the home of the Paleobotany collection considered to be the best in Canada and one of the best in the world. Along with the Royal Tyrrell Museum in Drumheller, the Paleobotany Collection at the University of Alberta is the official repository for fossil plants in Alberta." A list of scientif names may be used for searching this database of fossil photographs.

Title: PALEOMAP Project Provider: PALEOMAP Project Subject Heading/s: Plate tectonics; Continental drift LC Class: QE Reference Category: Handbooks Description: "The goal of the PALEOMAP Project is to illustrate the plate tectonic development of the ocean basins and continents, as well as the changing distribution of land and sea during the past 1100 million years."

Title: Prehistoric Life Provider: Canadian Museum of Nature Subject Heading/s: Paleontology LC Class: QE Reference Category: Guides Description: Illustrations and descriptions of a number of species.

Title: USGS Publications Provider: U.S. Geological Survey Subject Heading/s: Geology--Periodicals LC Class: QE Reference Category: Indexes Description: Abstracts of articles published by U.S. Geological Survey, as a subset of the GeoRef database; 1880- ?