AccessScience is an authoritative and dynamic online resource that contains incisively written, high-quality reference material covering all major scientific disciplines. An award-winning gateway to scientific knowledge, it offers links to primary research material, videos and exclusive animations, plus specially designed curriculum maps for teachers.

The Birds of the World is a comprehensive reference collaboration by the American Ornithologists' Union, the Cornell Lab of Ornithology, and the Academy of Natural Science. This reference covers the life histories of 10,824 bird species and including illustrations, audio clips, and videos.

An evidence-based, peer reviewed database of clinical information, covering more than 7,700 topics in 15 medical specialties and includes more than 80,000 pages of text, graphics, links to Medline abstracts, more than 260,000 references, and a drug database.

Gale in Context Opposing Viewpoints is a dynamic online library of current event topics--the facts, as well as the arguments, of each topic's proponents and detractors. Unique features include Topic Overviews -- frameworks that allow students to explore each topic's many facets -- and exclusive electronic access to statistics, government data, information on legislation and more.