Research
- Cleared Leaf Collection
- National Wildlife Health Center Publications and Metadata
- The Electronic Plant Information Centre
- Smithsonian Marine Station at Fort Pierce: The Indian River Lagoon Species Inventory
- Flora and Fauna of the Great Lakes Region: A Multimedia Digital Collection
- ScienceNOW
- Developmental and Reproductive Toxicology and Environmental Teratology Information Center Database
- Environment Australia's Online Image Database
Education
- Florida Springs: Protecting Nature's Gems
- BIO2010: Transforming Undergraduate Education for Future Research Biologists
- The Science Behind the News: Cancer
- AskERIC: Pass it On
- Scientific American Frontiers: Deep Crisis
- MIT OpenCourseWare
- ReproLearn: Care of Women with HIV in Limited-Resource Settings
- Photosynthesis, Energy, and Life
General
- The Life of Mammals
- America's Ten Most Endangered National Parks
- Spices: Exotic Flavors and Medicines
- Nature: The Mouse Genome
- Avocado Information
- The United States National Arboretum: Invasive Plants
- Menopausal Hormone Therapy
- The Red Kite