USA - http://osius.org e http://www.openspaceworld.org/cgi/wiki.cgi?OpenSpaceInstituteUSA

Canada - http://www.openspacecanada.org/

Australia and New Zealand - http://www.spiritedorg.com/OSIAUNZintro.htm

Denmark - http://www.openspace.dk/

Korea - http://openspace.kr/oskorea/