SwimInfo: Workouts & Technique - Gives tips for workouts and other exercises to improve technique for the swimming strokes. - http://www.swimmingworldmagazine.com/technique/Default.asp
Breaststroke Breakthrough - Complete with a full set of pictures, offers technique advice to improve your breaststroke. - http://www.breaststroke.info/grotebreast.htm
Injury Prevention - Provides practical advice about how to prevent injuries in swimming. - http://www.chp.edu/besafe/kids/01swimming.php
BBC Sport Academy | Swimming - Offers a glossary of swimming terms, ways in which to improve your technique and a guide to swimming equipment. - http://news.bbc.co.uk/sportacademy/hi/sa/swimming/
Go Synchro! - A beginner's guide to synchronised swimming, with history, photographs, and description of techniques. - http://www.users.bigpond.net.au/synchronisedswimming/