http://www.gpslib.ru/ Site that lets you upload trace, view it at map and download it back at any moment. It lets other users to see everyone else traces simply by viewing map or using advanced search. Traces are available as tracelogs with timestramps (compare it to Strava where tracelogs are provided as simple nodes, not traces).
It will also allow you to filter type of traces by their transportation mode.
gpslib.ru is THE biggest contributor with 316765545 points.