The International Commons Conference held in Berlin, Germany, November 1 and 2, 2010 brought together 180 participants from 34 countries. The conference was sponsored by The Heinrich Böll Foundation and the Commons Strategies Group.
You can find a dossier of the conference highlights, including my six-minute speed presentation on Reclaiming the Credit Commons, here. There is also an ICC wiki, here.
For more information about the commons see the On The Commons website.