I use Strava to track my bicycle rides. Below you can see my recent activity.
Just archiving a link for me to read later.
http://www-128.ibm.com/developerworks/web/library/wa-ajaxintro3/?ca=dgr-lnxw01MasterAJAX3
This website runs on the best open source content management system, DotNetNuke, it always runs the latest release.