Oakland Zoo
- Information about the White-Throated Monitor (Varanus albigularis).
- http://www.oaklandzoo.org/meet_the_animals/white-throated-monitor

Black Tree Monitor (Varanus beccarii)
- Description, food, habitat, social structure and senses of this monitor native to the Aru Islands of the coasts of New Guinea.
- http://www.thebigzoo.com/Animals/Black_Tree_Monitor.asp

Goanna venom rocks the reptile record
- Article about a discovery, made by a University of Melbourne-led team, that goannas and iguanas are venomous and sharing a common ancestor with snakes.
- http://uninews.unimelb.edu.au/unarticleid_3009.html

Varanidae
- Pictures and descriptions of several Monitor species by John Sullivan on Wildherps.com.
- http://www.wildherps.com/families/Varanidae.html

Wikipedia - Monitor lizard
- Evolutionary overview and classification of the family Varanidae (Monitor lizards).
- http://en.wikipedia.org/wiki/Monitor_lizard

Water Monitor (Varanus salvator)
- Fact sheet on feeding, breeding, distribution, threats and the status in Singapore with photos and links.
- http://www.naturia.per.sg/buloh/verts/monitor_lizard.htm

Treemonitors.com
- Dedicated to the Varanus prasinus species group. With information about their natural history, species descriptions, evolutionary history and distribution over the world. Has also an assortment of articles about keeping them in captivity.
- http://www.treemonitors.com/

Megalania prisca
- Fossil found in the Naracoorte Caves in South Australia, an extinct Varanid that grew to as long as 5m (17 ft) and possibly weighed as much as 500kg.
- http://www.parks.sa.gov.au/naracoorte/wonambi/animals/extinct/005780

Honolulu Zoo - Monitor Lizards
- Physical characteristics, behavior, diet, reproduction and growth of Monitor lizards.
- http://www.honoluluzoo.org/monitor_lizards.htm

The History of Monitor Lizards
- Article by Daniel Bennett about the fossil history.
- http://www.cartage.org.lb/en/themes/sciences/Paleontology/Paleozoology/Fossilvertebrata/HistoryLizards/HistoryLizards.htm

Fossil Monitor Lizards
- About the fossil history of varanid (monitor) lizards.
- http://www.fossilnews.com/1995/varanus.html

Family Varanidae
- Checklist of the living monitor lizards of the world by Wolfgang Böhme.
- http://www.cites.org/common/cop/12/ESF12i-06A.pdf

Australian Monitors
- Overview and pictures of monitors native to Australia.
- http://www.kingsnake.com/oz/lizards/monitors/monitors.htm

Varanus: The Pianka Lab Page
- Varanus in the Great Victoria desert of Western Australia.
- http://uts.cc.utexas.edu/~varanus/index.html