- Birding.com
 - Offering photos, identification information, birding basics, product reviews, and more. Also sells birding products and hosts online stores for birding companies. - Birdwatching.com
- Provides bird facts, images, and regional maps, as well as birdwatching products including software, binoculars and scopes, books, and videos.
- (AU) Birdwatching Australia
- Written and illustrated by Lloyd Nielsen.
- Wild Bird Outfitters
- Selling feeders, seed, binoculars, books, and gifts.
- Shortwing
- Catalogue presenting sights and sounds of birds and other wildlife from around the world.
- Sibley Guide to Birds
- Interactive field guide based on the best-selling field and behaviour books by David Sibley. Includes regional search, bird search, and side-by-side bird comparisions.
- Birdwatch America
- Virtual trade show, news letter, and buyers guide for the wild bird feeding and birding industry.
- Nature's Views
- Offers bird watching and underwater life monitoring solutions.
- Best Birding
- Shop online for bird watching products and accessories, including field guides, CDs, software, optics, houses, baths, and birding apparel.
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