The Crevasse Zone - Glaciological data collected on the Juneau Icefield, Alaska. Focuses on GPS-derived surface velocity, surface elevations, and strain rates. USGS Benchmark Glaciers - Long-term program to monitor climate, stream runoff, and the motion, mass balance, and geometry of glaciers at a few sites in Alaska and Washington State. Data are used to understand glacier-related hydrologic processes and improve prediction of water resources, glacier-related hazards, and the consequences of climate change. Peter Knight's Glaciers - Information, photos, and links on glaciers, glacial environments and glacial geomorphology. Also additional resources for users of the book "Glaciers". Satellite Images: Glaciers - US Geological Survey Satellite Image Atlas of Glaciers of the World. Scott Polar Research Institute - University of Cambridge - World Data Center - Directory of European Glaciology World Data Centre for Glaciology, Cambridge - Includes a directory of European glaciology and an ice and snow database. International Glaciological Society - Provides a focus for individuals interested in the practical and scientific aspects of snow and ice. Includes information on membership, the journal, meetings and symposia.