This site is a project for university and covers some of the basic scientific information of sugar gliders such as the scientific classification, habitat, descriptions. Basically what you would have found in a good encyclopedia.
This is a message board community full of sugar glider loving people who know a lot and can answer any questions. People with experience with these animals have many stories about them and practical information.
Sugar Glider Central has a good index, mostly to aid in caring for sugar gliders in captivity. Central is very well respected, used by zoo curators and breeders alike. This site has links relating to the legality of keeping gliders, reputable breeders, habitat information, etc.
This lesson site has comprehension questions and links to find the answers about various Australian Animals. It says "Australia has many kinds of animals that are found no where else in the world. Sample these Internet sites and complete the activities for each one to learn about the factors that are endangering some of the most remarkable animals in the world."