Fitocracy is not a Training Log in the way other sites I've reviewed are. Instead of directly tracking mileage, fitocracy assigns points for workouts, with a vast array of activities covered. These points are used like a Role Playing Game, where you go up levels as you get more points. There are also specific 'quests' you can fulfill, such as running a marathon. Fitocracy understands that longer runs are disproportionately harder than shorter runs, so a 20 mile run gets you more than double the points form a 10 mile run. Also, the pace you run that is a factor in how many points are assigned for a run. By its nature, Fitocracy is one of the most social sites I've tried, with a vibrant community. I would not recommend Fitocracy as a training log for runners, and that is not its purpose, but I would recommend it as a social network. Fitocracy is especially good for more rounded athletes rather than pure runners, as it allows you to add in weight training and many other activities. One minor annoyance is the lack of API into the site, see you can't automatically post from software such as SportTracks. You can however post from SportTracks into Runkeeper and then import from Runkeeper into Fitocracy. Another minor concern is the limit on how much text can be attached to a workout, though you can add comments to your running workouts as an ugly workaround. I particularly like the Fitocracy leaderboard that uses rolling 7, 30, 90 day periods rather than a fixed week or month.