Animal Diversity Web - Animal diversity information from the University of Michigan.
Biology - Khan Academy videos that cover a first year college biology course.
Careers in the Biological Sciences - The American Institute of Biological Sciences lists different types of jobs for biologists .
Encyclopedia of Life - The Encyclopedia of Life aims to provide information on every named species on Earth.
Medline Plus - MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH).
PubMed Central - PMC is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM)