Prince Edward Island
- Island Nature Trust
- Macphail Woods Ecological Forestry Project
- The Bedeque Bay Environmental Management Association (BBEMA)
- PEI Wildlife Federation
- Nature PEI – Facebook
- Nature PEI Native Plant Group – Facebook
- Birding on PEI – Facebook
Canada
- The Nature Conservancy of Canada (PEI – page)
- Nature Canada
- Nature Newfoundland and Labrador
- Nature NS
- Nature NB
- Nature Quebec
- Ontario Nature
- Nature Manitoba
- Nature Saskatchewan
- Nature Alberta
- BC Nature
- Ottawa Field-Naturalists’ Club
- Kingston Field Naturalists
- Toronto Field Naturalists
- Annapolis Field Naturalists’ Society (Western Annapolis Valley)
- Blomidon Naturalists Society (Eastern Annapolis Valley)
- Halifax Field Naturalists (Halifax area)
- Nova Scotia Wildflora Society (Nova Scotia)
Birding Organizations
- Nova Scotia Bird Society
- Bird Studies Canada
- Maritimes Breeding Bird Atlas
- What Bird ?
- All About Birds Guide
- The Great Backyard Bird Count
- Cornell Lab of Ornithology
- eBird.org – A real-time, online checklist program, eBird has revolutionized the way that the birding community reports and accesses information about birds. Launched in 2002 by the Cornell Lab of Ornithology and National Audubon Society, eBird
- iNaturalist online checklist program for all species
Research Organizations & Services
- Atlantic Canada Conservation Data Centre (Atlantic CDC)
- Canadian Amphibian and Reptile Conservation Network (CARCNET)
- Avian Conservation & Ecology – an open-access, fully electronic scientific journal, sponsored by the Society of Canadian Ornithologists and Bird Studies Canada
- Bird Sounds.net (collection of over 600 bird sounds)
Land Trust & Natural Habitat Organizations:
Nature and Environmental Courses