* Portland, 2006
 * London, 2007
 * Ottawa (at OLS), 2008
 * [[/Berlin-2009|Berlin, 2009]]
 * [[/Portland-2009|Portland, 2009]]
 * [[/Boston-2010|Boston, 2010]]
 * [[/SanFranciscoBayArea-2010|San Francisco, 2010]]