SIRS Knowledge Source - Social Issues Resources Series
Social issues, Science, History, Government  -  Articles updated daily

Business

Plunkett Research  new! 
Provides industry sector analysis and research, industry trends and industry statistics

Hoover's Online
Comprehensive company, industry, and market intelligence

Faulkner FACCTs
Complete computer and communications industry information source 

ReferenceUSA
Detailed information on U.S. & Canadian businesses, residents and health care providers

Health & Medicine

CINAHL/MedLine
Full-text - Nursing and health related literature

PubMed (from the U.S. National Library of Medicine)
Some full-text  -  Health, Science, Medicine  -  Journal articles, MEDLINE citations and more 

Reference

Noodle Tools  new!
MLA, APA, and Chicago/Turabian bibliography composer with fully-integrated note-taking

Credo Reference
250+ reference books, dictionaries, encyclopedias and atlases  -  All Subjects

Britannica Online
200,000+ links from Encyclopedia Britannica articles

Oxford Art Online
Full text of The Dictionary of Art.