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National Geographic is the source for photos, free desktop wallpapers of places, animals, nature, underwater, travel, and more, as well as tips and photographer bios.

David Doubilet, underwater photographer, Home Page. David specializes in underwater photography for editorial, advertising and stock. Clients include National Geographic Magazine, Skin Diver Magazine, Dive Magazine.

Groundbreaking developments in science, space, technology, health, and the environment

At TwistedSifter we sift, sort and summarize the best of the Web to keep you up-to-date and in the know.

Comprehensive underwater photography website and community for underwater photographers. Tutorials, product reviews, equipment, photo galleries, contests, travel

Free Screen Savers and galleries featuring the finest Underwater Photography on the web.

Top 10 Lists. Listverse is a website dedicated to top 10 lists of trivia from a variety of categories - the most popular of which are top ten lists of bizarre and human oddities.

Fotosearch Stock Photography and Stock Footage helps you find the perfect photo or footage, fast! We feature 7,600,000 royalty free photos, 95,000 stock footage clips, digital videos, vector clip art images, clipart pictures, background graphics, m...

Award-winning underwater photographs of marine life, including seahorses, sea dragons, clownfish, coral reefs, kelp forests, fish, sharks, dolphins, sea turtles, invertebrates, symbiosis, camouflage, predation & defense by David Hall

Become a scuba diver, Find a dive shop or dive resort, Learn to scuba dive with PADI scuba diving experts who guide you with scuba lessons, and information on how to start a career with scuba diving!, scuba certification, scuba diving class, scuba di...