TrailRunner - Layout and modify routes using the easy route planner.
RunKeeper - Join the community of over 45 million runners who make every run amazing with Runkeeper. Track your workouts and reach your fitness goals!
Golden Cheetah - GoldenCheetah is a software package that:
Strava - The #1 app for runners and cyclists
Runalyze - Runalyze analyzes your complete training, calculates your shape, computes prognoses and visualizes...
GPXSee - GPS log file viewer and analyzer with support for GPX, TCX, KML, FIT, IGC and NMEA files.