I'll add to this list any additional ones posted.
Catalina Channel Swimming Federation
US Open Water Swimming Connection
FINA
Manhattan Island Foundation, Inc.
Metropolitan Local Masters
oceanswims
Open Water Swimming South Africa
USA Swimming
Useful Links — Sri Chinmoy Marathon Team
USMS Long Distance Swimming
Channel Swimming Association Ltd
Channel Swimming & Piloting Federation
English Channel swimming & Long distance open water swimming
Finis
H2O Audio -- Waterproof Your iPod
Kast-A-Way
Kiefer On-Line Swim Shop
Skyline NW
SportCount - lap timers
Swimtowin
SwimOutlet
Swimovate Pool-Mate Swimming Computer
America's Top 50 Open Water Swims
L & M Sports calendar
Triathlons, Duathlons, & Swims (NJShoreRun.com)
Wildwood Triathlon Club
01 - Virtual Geographic Swim Series
04 - Tampa Bay marathon swim
05 - Potomac River 7.5 Mile Swim
06 - Charles River 1-mile swim
06 - Chesapeake Bay Swim
06 - Independence Day Mile Bay Swim
06 - Plunge for Patients (Wildwood NJ)
06 - Southernmost Runners and Swim around Key West
06 - Swim Around Key West
07 - Ocean City Masters Swim
07 - Traversée Internationale du Lac Saint-Jean
08 - Atlantic City marathon swim
08 - Betsy Owens Memorial Open Water Swim
08 - Mighty Merrimack 2-miler
08 - Lavallette Mid Summer Mile Ocean Swim
09 - Big Shoulders 5K
09 - Escape the Judge 1-mile swim, Skaneateles, NY
09 - Little Red Lighthouse Swim
09 - The Hudson River Swim
Carina Bruwer
Jim Dreyer
Jim Dreyer - The Spirit of Adventure
Jennifer Figge
Lynne Cox Swimming To Antarctica video
Martin Strel
Martin Strel - Amazon Swim 2007
Paul Timmons: From NJ to Delaware
Shelley Taylor
0 to 1650
five keys to triathlon swimming
GoSwim
GoSwim drills
Help for Novice Swimmers
Long-distance swimming - Wikipedia, the free encyclopedia
Marathon Swim Training [Archive] - USMS Discussion Forums
NTC Masters Swimming Workouts
Open Water Swimming - about.com
Open water swimming - Long-distance and marathon swimming - Te Ara Encyclopedia of New Zealand
Schwimmen, Schwimmtechnik: Crawlschwimmen, Kraul, Kraulschwimmen | Swimming technique: Crawl, Freestyle Swimming
Self-Coached Swimmer: TRAINING FOR OPEN WATER, The | Swimming World Magazine | Find Articles at BNET
Swim Center
The Swim Leg of a Triathlon - Training and Racing
Swimming Training and Physiology
Swimming/Triathlon
Swimming World Magazine
Swimming World Magazine Articles | Find Articles at BNET
Swimplan - personalized swimming workouts for all levels of swimming abilities
USA Swimming - Speedo Tip Archive
YouTube - Freestyle Flip Turn Technique
YouTube - Fast Swimming Flip Turn
YouTube - Grant Hackett Front Crawl Technique
YouTube - Hand entry YouTube - The catch YouTube - Shoulder rotation and fixing the non-dominate side YouTube - Heads up swimming
Speed my steps along your path, according to your will.
Son, when you participate in sporting events, it's not whether you win or lose; it's how drunk you get. -- Homer Simpson
Here's a swim race in Chicago http://www.bigshoulders.org/
Updated; thanks.