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Tulane University: Physical Geology: Glaciers and Glaciation
Lots of information here about glaciation, types of glaciers, the formation of glacial ice, changes in glacier size, how glaciers move, glacial erosion, landforms produced by glaciers, glacial deposition and drift, effects of glaciation...
US Geological Survey
Us Geological Survey: Satellite Image Atlas of Glaciers of the World
This site provides information on glaciers from around the world. Its two-page fact sheet can be downloaded as a PDF file.
National Snow and Ice Data Center
National Snow and Ice Data Center: All About Glaciers: The Life of a Glacier
Explains the conditions needed for glaciers to exist, how they begin to form, what causes them to flow, and why they may retreat.
National Snow and Ice Data Center
Nat. Snow and Ice Data Center: All About Glaciers: Where Are Glaciers Located?
Explains where glaciers can be found and what conditions are needed for them to exist. Includes a table showing where glaciers can be found around the world and the approximate areas. These figures were, however, from 2008.