2002 February 6 - 8, 2002
2003 February 10 - 12, 2003
2004 February 9 - 11, 2004
2005 January 26 - 28, 2005
2006 February 14 - 16, 2006
2007 August 20 - 22, 2007 - Bergen, Norway
2009 June 1 - 3, 2009 - Miami, FL
2011 February 7 - 9, 2011 - Miami, FL
2013 May 21 - 23, 2013 - Ann Arbor, MI
2015 June 2 - 4, 2015 - [Copenhagen, Denmark]