Perhaps you've become aware of Salman Khan on PBS, CNN or through one his promotional appearances, talking about his wildly successful Khan Academy?
This is an open-source (free) project that is nothing short of amazing. He has self-produced an online library of 1600+ instructional videos for math, science, finance, economics, biology, chemistry, astronomy, history, physics, and statistics. Although many of his lessons do specifically address curriculum standards (for a purpose, such as the CAHSEE), this library is not driven by a curriculum structure, but is instead driven by learner need and interest.
This is SO totally cool!