There are currently several first rate web sites which are providing rebreather divers with a wealth of utility and information. The following are some of these which I've found of interest:
Diver Dave's Rebreather Site. Gordon Smith's KISS Rebreather and gas booster pages. The Rebreather Web Page Closed Circuit Rebreathers. An excellent quick source of Rebreather information.
Dr. Bobs Diving Site Rebreather Mailing List Åke's Rebreather Pages Tom Rose's Pages Delta P Technologies, the VR-3 mixed gas closed circuit dive computer Swagelok.com, supplier for valves, SS braided lines and lots of other items Dräger Diving Equipment OxyCheq O2 analyzers and sensors Innerspace Systems Makers of the Megalodon CCR
GAS - Diving Equipment Configuration Many links at: MSTD (Mediterranean Sea Technical Divers) See: Karl's Rebreather Page Reduced Gradient Bubble Model from Abyss ]