In a land, not so far away i am helping to slowly populate the map of where i live, work, and play.
It all started from downloading a free GPS for the iPhone which harnessed the OpenStreetMap content system. However there was one problem... There was a great big blank nothing where my estate 'should' have been. So i took it upon myself to start sorting that out by setting off with my iPhone and getting some GPS traces!
However since then i have come up with a more interesting way to get accurate results without the need to get GPS traces. How? Using Google Earth you can set markers on the map and save them as a .kmz file! All you need to do then is give it a name, find an online converter (type convert kmz file to gpx into google) and away you go, you can then import the trace into JOSM and start building roads by just following the lines you mapped out using the satellite imagery. :]