Reference: dictionaries, encyclopedias and more!  Tags: dictionaries encyclopedias atlases  

AP Multimedia: images and some sound files going back 50 years+ from the archives of the Associated Press.

Birds of North America: from Cornell's Ornithology Lab...

Books in Print: an alternative to amazon.com for identifying in print books and pricing.

Mental Measurements: reviews of educational and psychological tests and information on how to obtain them.

MLA Directory: publisher, author submission information and more on 7,000+ journals.

Serials Directory: bibliographic information on over 100,000 periodical titles of all sorts.