Lets you monitor your GPS-phone. You have full control of your own data. Both client software (for phones) and server software is free open source, so you might set up your own server or use the default one at opengeotracker.org
Trip Tracker is a position tracking client-server system. A real time tracking environment can be set up with a GPS receiver and a tracking server. The map client can show the map position of the GPS client in real time.