http://adulted.about.com/od/icebreakers/Educational_Icebreakers.htm
http://www.kimskorner4teachertalk.com/classmanagement/icebreakers.html#People
http://www.businesstrainingworks.com/Icebreakers.PDF
http://www.mftrou.com/icebreaker-games.html
http://improvencyclopedia.org/categories//Icebreakers.html
http://www.odportal.com/training/icebreakers.htm