| Bird Watcher's Digest: OpticsFinder Collection of articles from the magazine on all aspects of buying binoculars and spotting scopes. | |
| Better View Desired Birding optics reviews, articles, manufacturers, and retailers. | |
| Audubon Society Guide to Binoculars Guide to buying binoculars from the National Audubon Society. | |
| All About Optics Advice about selecting optics for birding and reviews of binoculars and spotting scopes. Sponsored by Eagle Optics. | |
| WorldTwitch - Binoculars and Spotting Scopes for Birding Comparison of popular binoculars and telescopes used by birders, with recommendations. | |
| Optics4birding Sells binoculars, scopes, and tripods. Includes reviews, articles on optics basics and a buying guide. | |
| Mike's Birding Blog Reviews of optical equipment for birding and digiscoping. Articles and pictures about birding. | |
| Eagle Optics Resource for Binoculars and Spotting Scopes for Birding, Hunting, Nature, Sports, and Outdoor Recreation. See Complete Online Binocular Catalog and Buying Guide. | |
| BirdScope Information about birding with Tele Vue telescopes, with telescope and accessory selection guides, specifications, reviews, usage notes, and dealer list. | |
| Birding Optics: Binoculars and Scopes Articles by Michael and Diane Porter on how to choose and use them, comparison charts of top brands, and how they work. | |
