We are proud to announce that we are now also on Google Open Gallery, an initiative by the Google Cultural Institute: http://www.google.com/opengallery/
Google Open Gallery offers powerful free tools for artists, museums, archives and galleries and it is only on invite.
We have done this first virtual exhibition http://vecchiatoarte.culturalspot.org/exhibit/pellin-cinemart/lwLinc_lt_EiKQ about Cinzia Pellin.
We think that this a good tool for artists, galleries and museums but too much "static" in terms of the social Web.
Surely this is because it is still in a first phase of its existence and we hope that Google will greatly improve it and continue to support it.