The BIMserver enables you to centralize the information of a building project.
It uses open standards like IFC. Bimserver.org is completely free and non-profit!
Some new stuff: 25% speed increase; sub-projects; automatic merging; RSS change notification; geolocate projects; google earth link; checkout/update warnings; change finder on revisions; lots of export formats; and much more...
Just some of the features of the BIMserver: Multiuser, automatic merging; change notification; geolocate projects; google earth link; revision management; query and filter possibilities; revisiondetails; checkout/update warnings; change finder on revisions; export of CityGML, Collada, KML, IFC properties, O3D; and a lot more......