at Commons Learning Center on 2 May 2019 – 4 May 2019

at Addison Conference Center on 7 Apr 2016 – 9 Apr 2016

at Microsoft HQ on 6 Nov 2014 – 8 Nov 2014

at Alliant Energy Center on 13 Sep 2014

at Addison Conference and Theatre Centre on 25 Apr 2014 – 26 Apr 2014

at Addison Conference Center on 28 Jun 2013 – 29 Jun 2013

at Hilton Montreal Bonaventure on 25 Feb 2013 – 1 Mar 2013

at Addison Conference Center on 29 Jun 2012 – 30 Jun 2012

at Sheraton Gateway Suites O’Hare on 22 May 2012 – 25 May 2012

at SoftLayer Offices on 21 Feb 2012

at Santa Clara Convention Center on 17 Oct 2011 – 20 Oct 2011

at Crowne Plaza - Dallas on 11 Jun 2011

at Yahoo Offices on 11 Aug 2010

at Sheraton Gateway Suites O'Hare Hotel, Rosemont, IL on 18 May 2010 – 21 May 2010

at San Jose, CA on 19 Oct 2009 – 22 Oct 2009

at Dallas, Tx on 26 Sep 2009 – 27 Sep 2009