Open Directory Project. Provides over 18,000 generally appropriate biology sites selected and categorized by volunteers.
About.com. This site is a good place to go for basic, easy-to-understand information.
Academic Info: Biology & Biological Sciences Gateway . Includes academic-level Web sites in a variety of subjects.
Biozone. A nice site from New Zealand; of interest to the general public and students. Has a directory of over 500 links with lots of good ecology/biodiversity sites.
INFOMINE Comprehensive Biological, Agricultural, and Medical Resource Collection. A venerable scholarly Web directory, with links selected by librarians. From the University of California-Riverside.
SciCentral: Gateway to the Best Science News Sources Online. Provides news stories and numerous links categorized by subject and type. A good source for background information and news on a variety of topics.
BIOSIS. Publishers of Biological Abstracts.
NCBI (National Center for Biotechnological Information). Access to Entrez, GenBank, PubMed, OMIM, others.
NSF Grants & Awards. Funding information and guidelines from the National Science Foundation
GrantForward. Provides a searchable database of funding opportunities in all fields of study.