5 links
Better View Desired
betterviewdesired.com
Birding optics reviews, articles, manufacturers, and retailers.
Bird Watcher's Digest: OpticsFinder
birdwatchersdigest.com
Collection of articles from the magazine on all aspects of buying binoculars and spotting scopes.
Birding Optics: Binoculars and Scopes
birdwatching.com
Articles by Michael and Diane Porter on how to choose and use them, comparison charts of top brands, and how they work.
Optics4birding
optics4birding.com
Sells binoculars, scopes, and tripods. Includes reviews, articles on optics basics and a buying guide.