AmphibiaWeb http://elib.cs.berkeley.edu/aw/
Biodiversity Sciences Technology http://bscit.berkeley.edu/
Geographic Information Science Center http://www.gisc.berkeley.edu
Global Biodiversity Information Facility http://www.gbif.org/
Herpetological Database System http://www.herpnet.org/
Integrated Taxonomic Information System http://www.itis.usda.gov/
Mammal Networked Information System http://elib.cs.berkeley.edu/manis/
ORNithological Information System http://ornisnet.org/
Taxonomic Databases Working Group http://www.tdwg.org/

AOU Checklist of North American Birds http://www.aou.org/checklist/index.php3
Avibase-World Bird Database http://www.bsc-eoc.org/avibase/avibase.jsp
Amphibian Species of the World http://research.amnh.org/herpetology/amphibia/index.php
Animal Diversity Web http://animaldiversity.ummz.umich.edu/site/index.html
EMBL Reptile Database http://www.embl-heidelberg.de/~uetz/LivingReptiles.html
Mammal Species of the World http://www.nmnh.si.edu/msw/
Zoobase Taxonomic Database http://www.lithopssoft.com/zoo/