A good basic US Geological Survey resource focusing on the Benchmark Glacier Research project, a long-term glacier mass balance study in progress since the 1950s. It includes several North American glaciers and forms the longest continuous record of mass balance using the same methods in difference climate zones.
Glacier facts and fundamentals from the National Snow and Ice Data Center. This site includes fact sheets, photo galleries, data sets, and an interesting write-up on the life cycle of a glacier, as well as a comprehensive glossary of terms for glaciers.
This is an archive of all of the "snow and ice" posts from NASA's Earth Observatory. In the features section, there are many images, comparative photos, and detailed summaries from many years of NASA observations. Particular events and comparative changes over time are available, with a little digging.
Articles, publications, images, and numerous studies being conducted by the University of Alaska Fairbanks, Geophysical Institute, focusing on permafrost monitoring and research. Many on-going projects, including one on Permafrost Modeling in Alaskan National Park Lands underway thru 2016.
National Snow and Ice Data Center
Articles, research data, and a variety of media products about cryosphere features and current/ongoing studies. Includes basic facts and information about snow and ice around the world.
Here is a great handout by USGS about Retreat of Glaciers [PDF] in Glacier National Park.
Last updated: September 22, 2016