Guam Rail
- An article from Yak's Corner about one of Guam's endangered birds.
- http://www.yakscorner.com/stories/guam_rail.htm

Guam environmental field trips
- Field trip notes/photos, plus maps and study guides for U. Guam Environmental Biology course. Includes 3D maps of some sites for geogrophiles.
- http://www.uog.edu/classes/bi-100/field_trips.htm

National Earthquake Information Center: Guam
- Guam seismicity map and earthquake history from the US Geological Survey.
- http://wwwneic.cr.usgs.gov/neis/states/guam/guam.html

Rocks and Minerals of Guam
- Brief descriptions of Guams minerals and rocks, and where to find them.
- http://www.heptune.com/guamrock.html

Tales of Guam
- Humorous and informative essays about Guam life, including Talofofo Beach, Fafa'i Beach, earthquakes and plants.
- http://www.heptune.com/Guamtale.html

Microscopic Critters of Guam
- This site is devoted to the freshwater microfauna of Guam, and includes descriptions and drawings of organisms including ciliates, amoebae, rotifers, flatworms, gastrotrichs and annelids.
- http://www.heptune.com/madog.html

Micronesian Guam Kingfisher
- Taxonomy, description, status, life history, and management of this endangered bird, with a long list of references, from Fish and Wildlife.
- http://fwie.fw.vt.edu/WWW/esis/lists/e101034.htm

Guam Broadbill
- Taxonomy, description, status, life history, and management of this endangered bird, with a long list of references, from Fish and Wildlife.
- http://fwie.fw.vt.edu/WWW/esis/lists/e101033.htm

The Plants of Guam
- This site produced by the College of Agriculture and Life Sciences at the University of Guam lists dozens of plants, describes their characteristics, provides photographs, and gives plant names in Chamoru and English along with their scientific names.
- http://www.uog.edu/cals/site/POG/POGHome.html

Critters of Guam
- Humorous essays about Guam's wildlife, including brown tree snakes, bagworms, mosquitoes, flatworms, slugs, carabao, pigs, toads, chickens, lice, balate, dogs, lizards, flies, ants, wasps and cockroaches!
- http://www.heptune.com/Guamcrit.html