DesertUSA.com (DUSA) provides this interesting site, offering a plethora of general information on the deserts of the United States. Designed as an educational tool for discovering "the beauty, life and culture of North American deserts," the site contains illustrated text, factual summaries, virtual reality tours, movie/audio clips, and stories. All materials focus on desert-related topics, including plants, animals, geology, cultural and natural history, and parks, among others. The site has much to offer -- from the basics of the desert environment, to a photo-illustrated guide of desert flora and fauna, to details on specific arid and semi-arid deserts of the American Southwest. A glossary of desert terms and brief descriptions of features of the Chihuahuan, Great Basin, Mojave and Sonoran Deserts round out the site.