Really good idea, and great to see so many interested.
I offer to act as data licensing advisor / clearinghouse and add what we learn
from the process to the OSGeo Wiki. Step one of my planned Public Geospatial
Data Committee revival. Step two will be an OSGeo White Paper defining Open
Data,
Carsten,
you find these most simplistic categories right on the OSGeo web site on the
right hand: http://osgeo.org
Another good starting point might be OSGeo Live at: http://live.osgeo.org/
which also includes short descriptions in several languages and projects not
directly related to
