Interactive Price Graphs!

http://www.bized.co.uk/learn/economics/markets/mechanism/interactive/part3.htm

http://www.dineshbakshi.com/interactive-graphs/1362-demand-supply-and-equilibrium-price

http://www.whitenova.com/thinkEconomics/supply.html

http://www.college-cram.com/study/economics/supply-and-demand/equilibrium-curve-shifting-the-curve/

http://www.college-cram.com/study/economics/supply-and-demand/equilibrium-curve-the-effects-of-price/

http://www.kiva.org/lend/344669