Credits
Blogger https://www.blogger.com/start [Retrieved 3 April 2009].
NETS*S. http://www.iste.org/Content/NavigationMenu/NETS/ForTeachers/2008Standards/NETS_for_Teachers_2008.htm [Retrieved 13 February 2009]
Slide Share http://www.slideshare.net/ [Retrieved 3 April 2009]
Social Studies Pictures. http://images.search.yahoo.com/images/view?