Mapmyrun.com In their own words
MapMyRun.com is a community web site for runners and joggers who want to stay healthy, lose weight or train more effectively. MapMyRun.com provides easy-to-use, comprehensive web-based running tools and running maps to measure distance and count calories from running. With running forums, training logs and tips from expert runners and coaches, MapMyRun.com is the site where runners are.
Why Mapmyrun.com might be a killer
Largest workout database, great visual interface, good use of 2.0 mapping technologies, and just fun!
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