YMCA Scuba
One of the oldest SCUBA organizations in the US. Learn to dive at your local Y; special sections for the diabetic and asthmatic diver

Scuba Equipment USA
Full service scuba gear store. Check out their Top Ten list to see what's hot or get a quote on your next scuba vacation

Scuba Duba
Your online diving resource; find a diving buddy, visit the forums, post or read the free classifieds.

Sharp Diver
Online store sells it all. See what's new, check out the dive computers, get gift ideas

Scuba Diving at About.com
Diving how-tos, the history of diving, certification information and much more.

Absolute Scuba
Shop for brands such as Aeris, IST and XS, or shop by category. See specials and closeouts for deals.

Wikipedia
The online encyclopedia's entry for scuba is extensive, and deeply linked to related articles for even more info.

Skin Diver Online
Buy suits, regulators, gauges, tanks, cameras and more. (Site is framed, so no links.)

CyberDiver
The diver's online magazine. Sections of equipment including buyers' guides, recall info and articles, travel, photo gallery, forums coming soon, newsletters, and more.

Diver's Discount
Lots of categories of gear goodies here - check out their kidz stuff and sea scooters. 150% price protection.

Scuba Guide
Sections on learning to dive, getting certified, diving vacations and a place for you to post and read reviews of diving gear.

Leisure Pro
The Diver's Emporium. Had the usual gear, plus packages, specials, clearance items and used gear.

Rebreather World
The next step in Scuba Diving, dive longer, go farther. This site features a photo gallery, forum, reviews and articles.

Scuba Toys
All kinds of scuba gear, plus paintball equipment. Check out their scuba camera section.

DivingWithSharks.com
For those of you to whom diving is all about the sharks - you know who you are. Sections on learning about sharks, destinations for shark diving, and conservation information.

Diver Discount
Full scuba gear store, owned and staffed by divers. All the gear you'll need. Visit their Sea of Cortez website as well.

NAUI.org
National Association of Underwater Instructors worldwide. Website focuses on diving education, primarily for diving instructors but information of general interest to all divers as well.

Vintage Scuba Equipment
They buy and sell antique and vintage scuba gear, for preservation, restoration and appreciation. For the serious collector.

ScubaBoard
An online diving community, featuring articles, directory, photos and the main feature, the diving forums.

2nd Hand Scuba
Online classifieds; buy and sell used scuba gear here. Make sure you know what things are worth before entering into a transaction.