MathTV is a real problem solver for many. It is also found on YouTube, and is free. Here is some background.
posted by Brian B. on Mar 21, 2009 - 8 comments

The Mechanical Universe...and Beyond is a critically-acclaimed series of 52 thirty-minute videotape programs covering the basic topics of an introductory university physics course. This well produced and highly informative 52 episode series, hosted by David Goodstein of Caltech, is available as Video on Demand (Note: simple registration required to view videos). [more inside]
posted by FuturisticDragon on Feb 6, 2008 - 28 comments

Review of Five Free Calculus Texts.
posted by weston on Mar 8, 2004 - 14 comments