Swim Magazines and Articles:

USMS Swimmer
Swimming World Magazine (formerly SwimInfo.com)
Swim Articles - a welth of information about swim training by 1993 USMS Coach of the Year, Emmett Hines and his team mates.
Swim News - Worldwide Swimming News

Training & Technique:

WebSwim - Your Internet Swimming Community
When you're ready to go fast... Go Swim! - World Class breaststrokers Glenn Wells and Dave Denniston offer loads of great information on competing in all strokes.
Breaststroke - A Site Dedicated to the Breaststroke
American Swimming Coaches Association - Leadership . Education . Certification

Swim Wear Makers:

TYR
Speedo

Computer Software:

Hy-Tek - We use Team & Meet Manager...
Colorado Time Systems - Making Time Count

College:

College recruiting with a swimming edge!
CollegeSwimming

College Swimming & Diving Sites in California:

Cal Poly Swimming & Diving - (San Luis Obispo, CA)
California Baptist University Swimming & Diving - (Riverside, CA)
California State University (Bakersfield) Men's Swimming & Diving - (Bakersfield, CA)
California State University (Bakersfield) Women's Swimming & Diving - (Bakersfield, CA)
California State University (Fresno) Women's Swimming & Diving - (Fresno, CA)
California State University (Northridge) Swimming - (Northridge, CA)
Claremont McKenna/Harvey Mudd/Scripps Men's Swimming & Diving - (Claremont, CA)
Claremont McKenna/Harvey Mudd/Scripps Women's Swimming & Diving - (Claremont, CA)
Stanford Men's Swimming & Diving - (Stanford, CA)
Stanford Women's Swimming & Diving - (Stanford, CA)
University of California (Berkeley) Men's Swimming & Diving - (Berkeley, CA)
University of California (Berkeley) Women's Swimming & Diving - (Berkeley, CA)
University of California (Los Angeles) Women's Swimming & Diving - (Los Angeles, CA)
University of California (San Diego) Men's Swimming & Diving - (San Diego, CA)
University of California (San Diego) Women's Swimming & Diving - (San Diego, CA)
University of California at Irvine Swimming & Diving - (Irvine, CA)
University of LaVerne Men's Swimming & Diving - (LaVerne, CA)
University of LaVerne Women's Swimming & Diving - (LaVerne, CA)
University of Southern California Men's Swimming & Diving - (Los Angeles, CA)
University of Southern California Women's Swimming & Diving - (Los Angeles, CA)
University of the Pacific Men's Swimming & Diving - (Stockton, CA)
University of the Pacific Women's Swimming & Diving - (Stockton, CA)


(for other colleges, see Harvard Varsity Swimming and Diving: SwimIndex of Colleges)

National Swimming Organizations:

United States Masters Swimming - "Swimming for Life"
USA Swimming Official Site
United States Aquatic Sports

International Swimming:

SwimNews.com - Worldwide Swimming News
Federation Internationale de Natation (FINA)
International Swimming Hall of Fame
Official website of the Olympic Movement