23rd NGF, Israel, June 2011

Mini NGF, Ottawa, Canada and Cape Town, S. Africa, March 2011

22nd NGF, Croatia, March 2010

Mini NGF, Cape Town, S. Africa, Oct. 2009

21st NGF, Israel, Feb. 2009

20th NGF, Uruguray, Feb. 2008

19th NGF, Israel, June 2007

18th NGF, Melbourne, Australia, Nov. 2006

17th NGF, Cape Town, S. Africa, Feb. 2006

Mini NGF, Teheran, Iran, Fall 2005

16th NGF, Glamsta, Sweden, August 2005

15th NGF, Mumbai (Bombay), India, March 2005

12th NGF, Glamsta, Sweden, August 2003