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pre calculus notes:   http://www.themathpage.com/aprecalc/precalculus.htm

pre calculus videos:  http://www.baruch.cuny.edu/dml/engine.php?action=viewAsset&mediaIndex=328

pre calculus videos: http://www.tcc.fl.edu/about_tcc/academic_affairs/division_of_academic_support/learning_commons/math_and_science/student_resources/course_specific_materials/mac_2140/video_tutorials_for_stewart_s_precalculus_5th_edition

all math courses:  http://www.khanacademy.org/

Calculus lesson videos: http://online.math.uh.edu/HoustonACT/

A web site that gives you links for all mathematics subjects:  http://lc.newark.rutgers.edu/links.html