Fitness enthusiasts have embraced mobile apps to track their workouts. Using GPS on a mobile phone, it is easier than ever to not only determine how far a run is, but also to log the exact route. Sharing workouts has also become popular, thanks to sites like Strava and Garmin Connect. It gives runners accountability and a sense of community, and the sites often include leaderboards. Like most social media outlets, its users have the option of who gets to see that information.
