Complex sentence: VB2006 took place 11-13 October 2006 at the Fairmont Queen Elizabeth, Montreal, Quebec, Canada, VB2007 was held in Vienna, Austria and VB2008 took take place in Ottawa, Ontario, Canada.
Split into simpler sentences: VB2006 took place 11-13 October 2006 at the Fairmont Queen Elizabeth, Montreal, Quebec, Canada and VB2007 was held in Vienna, Austria. VB2008 will take place in Ottawa, Ontario, Canada.