The mechanical universe series in streaming video

  MIT's magic blackboard on UTube.

  An overview of the current "Standard Model" of particle physics from the Economist.

  A fabulous set of video-taped lectures and demos by an MIT master physics professor.  A MUST SEE!!!    

  HyperPhysics (an interactive tutorial in physics)

  Fermilab physics tutorials

  Physics.com's website: a great general source of physics information.

  Wofram synbolic integrator

  Useful acoustic and vibration animations from Dr. Dan Russell

  The Einstein  papers project at Caltech

  Physics demonstration videos:

  Stephen Hawking's website

  U.C. Berkeley Physics Lecture Demonstrations

  Modern and Contemporary Physics

  Educational Resources- Physics Net Links

  Physical Review Letters online - Abstract View

  Selected Physics Web Sites