Provides a complete, single-volume reference to the social, legal, economic, psychological and political issues surrounding the adoption experience and its unique terminology.

Offers different resources from an encyclopedia, thesaurus and an online dictionary.

Project that's aim is to put all information in the world on the internet for free access.

Provides natural resource professionals and the public the scientific knowledge and tools they need to achieve their objectives.

An internet encyclopedia of mythology, folklore, and religion.

Massive online encyclopedia with over 300,000 topics featuring images and videos too.

Search over 2 million records with images, video and sound files, electronic journals and other resources from the Smithsonian's museums, archives and libraries.

Features articles and reports on art, design, history, culture, science, technology, and geography.