Create a Graph http://www.nces.ed.gov/nceskids/createagraph/default.aspx
Help with graphing in excel, and other stuff http://www.atomiclearning.com
Graph program http://antoine.frostburg.edu/cgi-bin/senese/graphpad.cgi
PCR and Eletrophoresis Virtual Lab http://library.thinkquest.org/C0122628/displaygamesmenu.php