Merkaartor is re-using part of these great projects:

Tango Desktop Project (http://tango.freedesktop.org/Tango_Desktop_Project) fir icons
QMapControl by Kai Winter (http://medieninf.de/qmapcontrol/) for the original background map layers
Qadastre by Pierre Ducroquet (http://gitorious.org/qadastre) for the frenc cadastre background
