Scuba Diving

DiveLogOnline - Free online scuba dive log book for divers.
http://www.divelogonline.com

Dive Table Formats - Offers 9 different dive table formats in both metric and imperial.
http://www.flash.net/~table/table/index.htm

Travel Diver - Free online divelog for those that register. Includes features, message board, and classifieds.
http://www.traveldiver.com

Immersions - Internet Dive Log is a web-enabled scuba diving application. Free demo download available and allows up to 20 dives to be recorded. Also offers video production and travel services.
http://www.immersions.com

Global Underwater Explorers - Equipment utilizing gradient factor calculations, allowing safety factors and deep stops to be customized across multiple diving profiles for mixed gas diving.
http://www.gue.com/

Casuarina Aquatics, Inc. - Software for planning technical scuba dives and for training divers in the physics and physiology of diving. Also provide scuba instruction and dive travel for training and recreation.
http://www.casuarina-aquatics.com

Dive Computer Interfaces - Plans for homemade interfaces for Mares dive computer, free software, and links.
http://www.geocities.com/scubax.geo/

Technical & Recreational Divers Support - Technical and recreational custom air, nitrox and mixed gas decompression software.
http://www.diverssupport.com

Sea Wolff Diving Software - Dive Log for Windows. Useful software with versions for divers, instructors, SAR Teams, and Divemasters.
http://www.seawolff.com

Internet Dive Log - IDL is a complete scuba diving application, tracking all aspects of diving, and works with all major brands of dive computers. Still Beta testing and free.
http://www.immersions.com/idl

Gas Absorption Program - GAP is a free downloadable decompression program that utilizes unpadded bulhmann's decompression algorithm for mixed gas decompression.
http://www.gap-software.com/

ReefNet Software - Software for divers and fish watchers and dive logs.
http://reefnet.ca/

V-Planner - Decompression software which uses a VPM bubble model with deep stops inbuilt. Can set conservatism levels, create lost gas and bail out plans, extended stops, and air breaks.
http://www.v-planner.com/