I have no financial connection with the diving trade and the diving gear trade.
Links corrected 8 June 2008.
BSAC
Fabio's Scuba Diver Photo Gallery
HDS (= Historical Diving Society)
Aquanaut Mailing List Archives
The Drogon Network [SCUBA], including archives of NDG and SCUBA-UK email groups.
UK Diving, Scuba Diving Resource for the UK with Dive International
Welcome to 'Cirrus' (Diving in Anglesey)
UK Diving/Scuba Resource Server
Australian scuba diving information (a big site)
Paul Escudier's scuba site & forum