Links that will further provide information:
Short Run vs. Long Run:
http://economics.about.com/cs/studentresources/a/short_long_run.htm
Different Schools of Economic thought: http://www.investopedia.com/university/macroeconomics/macroeconomics1.asp
Determinants of AS and AD:
http://www.slideshare.net/MrRed/aggregate-supply-demand-285696