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General

• Access Excellence - the National Health Museum
• Biodidac - digital resources for teaching biology
• Biology Gateway - directory of online biological & live sciences resources
• BioPoint Hotlist - Franklin Institute links to topics, exhibits, reference, news, etc.
• BioTech Life Science Dictionary
• Genome Glossary - human genome project information
• Research and How-To Guides for Biology - University of Delaware Library
• The Virtual Embryo: Developmental biology research resources

Organizations

• American Institute of Biological Sciences
• EPA - Environmental Protection Agency
• Howard Hughes Medical Institute 
• Nature Conservancy
• NIANR - Nebraska Institute of Agriculture and Natural Resources
• Salk Institute for Biological Studies
• USGS Biological Resources
• WWW Virtual Library of Cell Biology - organizations and more

References/Resources

• Agricola - National Agricultural Library
• Life Sciences Resources - Search index on Internet Public Library
• Molecular Biology Gateway - Biology reference and breaking news.
• The Biology Project - University of Arizona
• Talk Origins - A Usenet Group about Creation vs Evolution with resources for both sides.