A 21 Week Marathon Training Program
- Designed for runners who need a lot of rest, or who can only run 4-5 days per week.
- http://www2.cs.uh.edu/~ceick/gif/mara.html

Running Fit Marathon Training
- Tips, advice, schedules and motivational writings concerning Marathon training and racing.
- http://www.runningfit.net/index.php?option=com_content&task=blogcategory&id=19&Itemid=74

Training for Beginning Runners/Joggers
- Marathon, half-marathon and 10K training: avoiding running injuries; weight loss; fitness.
- http://www.wiserunner.net/

Run-Strong
- Denver based coaching and training group for beginning to elite runners. Coach Maureen Roben helps athletes achieve their training goals.
- http://www.run-strong.com

Runn Club Training Diary
- Register training free; keep track of your running online; marathon training plans. English and German.
- http://www.runnclub.com

Runner's Edge of the Rockies
- Group marathon training in the greater Denver area. Weekly training runs including aid stations. Coaching support for all levels.
- http://www.runnersedgeoftherockies.com/

Marathon Rookie
- How to train for a marathon or half marathon.
- http://www.marathonrookie.com

Jeff Galloway Marathon Training
- Jeff Galloway marathon/half-marathon training groups. Low mileage runs and injury-free training techniques. Weekly group runs with experienced leaders.
- http://www.daytonamarathon.com

Gait Scan
- Biomechanical Assessment and Sports Injury Prevention: discover the most appropriate method to improve and support the way you run to prevent injury.
- http://www.axis-podiatry.co.uk

Marathon Training
- Historical facts, basic running information, marathon training advice and useful links.
- http://www.sonic.net/~bckrose/marathon%20web%20page.htm

Be A Marathon Runner!
- Train to run a safe marathon and/or improve your times. Three training programs by mail.
- http://www.marathonrun.greatnow.com

Marathon and Beyond
- Bimonthly magazine in book form for easy reference: marathoning, ultra distance running and training. Articles from the magazine are available on the website.
- http://www.marathonandbeyond.com

National Aids Marathon Training Program
- Running and walking program to train for a marathon.
- http://www.aidsmarathon.com

Denver Fit
- Marathon and half marathon training programs: fun and non-intimidating.
- http://www.denverfit.com

Hal Higdon's Marathon Training Guide
- Senior Runner's World writer and coach provides schedules for beginner, intermediate and advanced runners.
- http://www.halhigdon.com/marathon/Mar00index.htm

State of the Art Marathon Training
- Training programs for the beginner to the advanced competitor.
- http://www.marathontraining.com/

USA Fit
- Marathon and half marathon training available online and in person in many US cities.
- http://www.usafit.com/

David Holt's Marathon Training Guide
- Schedule for the 50-60 mile a week runner.
- http://home.sprynet.com/~holtrun/marelete.htm