The search company responsible for countless hours of sitting by a computer screen can help you burn calories, too. To plan jogging routes and track mileage, running enthusiasts are turning to independently produced sites that tap online mapping services from Google and its rivals. As someone who has logged every mile on a spreadsheet since December 2000 (10,146.7 and counting) — these free tools help fuel my obsession with how far I’ve run. After trying several of the Web services during a recent West Coast trip, I found there’s no substitute for simplicity.
