math
formulary:
http://www.mustun.ch/andrew/archives/uni/m/uni_m_formulary.pdf
other:
http://www.mathe-online.at/galerie.html
http://www.pythagoras.ch/deutsch/index.html
http://www.i4ds.ch/fileadmin/user_upload/vorlesungen/
http://www.abiturloesung.de/
http://www.matheboard.de/thread.php?threadid=618
http://www.mathematik.net/Integ-1/ia-001.htm
http://www.physics.uoguelph.ca/phyjlh/Fendt/phe/phe.htm