- Science, Environment and Ecology
- The Electronic Naturalist
- Paleontological Research Institution
- Sapsucker Woods Sanctuary and Ornithology Lab
- Cornell Cooperative Extension of Tompkins County
- Cornell Plantations
- The Nature Conservancy
- The Sciencenter
- National Audobon Society
- GLOBE (Global Learning and Observations to Benefit the Environment)
- eNature.com
Local Outdoor Recreation
- Cornell Outdoor Education
- About the Finger Lakes Trail System
- Central New York Orienteering
- Cayuga Nordic Ski Club
- Adirondack Mountain Club - Finger Lakes Chapter
Outdoor Adventure Travel
- Great Outdoor Recreation Pages
Weather
- Area Weather (Chemung-Schuyler-Steuben-Tompkins Counties)
- National Weather Service
- The Weather Channel
Conservation, Recreation, and Educational Organizations
- Appalachian Mountain Club
- Sierra Club
Ithaca and Tompkins County - General Information
- Ithaca Events
- volunteertompkins.org
- Finger Lakes Library System
- IthacaNet
- PhotoViews