Frogs of South America
- Photographs of frogs of Ecuador, Trinidad, Tobago, and the Lesser Antilles.
- http://www.morley-read.com/frogs_on_line/frogs_on_line.html

Westward Frog!
- Information about the frogs and toads of California and threats to the survival of the state's amphibians. Includes a bibliography of field investigation methods and a directory of researchers.
- http://ice.ucdavis.edu/CANVDecliningAmphibians/texthtml/wwfrog.html

Frogs Australia Network
- Information about Australian frogs and their conservation.
- http://www.frogsaustralia.net.au/

Frogs of New England
- ThinkQuest resource and game page for students. It describes the anatomy, the habitats, and the life cycle of local amphibians.
- http://library.thinkquest.org/11034/

Frogs of Australia
- Comprehensive guide including descriptions, distributions, breeding calls, identification key, and a glossary.
- http://frogs.org.au/frogs/

Frogwatch USA
- A frog and toad monitoring program by the National Wildlife Federation in partnership with the United States Geological Survey.
- http://www.nwf.org/frogwatchUSA/

MidWest Frogs
- Video clips of frog calls in QuickTime format.
- http://www.midwestfrogs.com/

Tadpoles of the United States and Canada: A Tutorial and Key
- An approach to identifying frog larvae using characteristics of living tadpoles. Includes photographs.
- http://www.pwrc.usgs.gov/tadpole/

Scientific American: Explaining Frog Deformities
- An eight-year investigation into the cause of a shocking increase in deformed amphibians has sorted out the roles of three prime suspects.
- http://www.sciam.com/article.cfm?articleID=000D5DCC-CA4A-1E1C-8B3B809EC588EEDF

Nova Scotia Frogs
- Photos and descriptions of species endemic to the region.
- http://museum.gov.ns.ca/mnh/nature/frogs/

Order Anura
- Description of the families of the order, including characteristics and behaviour.
- http://www.msu.edu/user/costabil/academic/portfolio/herp_lab/Anura.htm

Frogs of the Malay Peninsula
- Guide to the frogs of the Malay Peninsula (Thailand, Malaysia and Singapore), with photos, descriptions, and audio. Includes information about biology and ecology, checklists, field tips, and references.
- http://frogweb.org/

Biology of the Frog
- Information and facts including anatomy, life span, diseases, and history.
- http://www.lookd.com/frogs

Whole Frog Project
- An interactive frog dissection kit, movies, sounds, and information.
- http://www-itg.lbl.gov/ITG.hm.pg.docs/Whole.Frog/

Jurassic Frogs
- Study on reconstructed skeleton of a frog that hopped among the dinosaurs nearly 200 million years ago.
- http://sln2.fi.edu/inquirer/frog.html

Deformed Frogs in Minnesota
- Information on possible causes and what the MPCA and other organizations are doing about deformed frogs.
- http://www.pca.state.mn.us/hot/frogs.html

Kentucky Frogs and Toads
- Listing of the species of frogs and toads that inhabit Kentucky. Offers photographs of species, a range map, and sound files of their calls.
- http://bioweb.wku.edu/froglogger/

Exploratorium: Frogs
- Features an online exhibition, frog myths across cultures, and sound files.
- http://www.exploratorium.edu/frogs/

FrogWeb
- A multi-agency initiative that provides information about recent, global declines and deformities among amphibian populations.
- http://www.frogweb.gov

Toronto Area Frogging
- Volunteer to conduct an area frog survey or just look over the wealth of information available here.
- http://www.zoo.utoronto.ca/natalie/frogpage.html

Frogs and Toads of Georgia
- Detailed species accounts with photos, illustrations, calls, and range maps for 32 species.
- http://wwknapp.home.mindspring.com/GAFrog.Toad.html

Frogs of Tasmania
- A guide to Tasmania's frogs from the Tasmanian Parks and Wildlife Service. Includes sound files of frog calls.
- http://www.parks.tas.gov.au/wildlife/frogs/frogs.html