I don't like non-interactive flash. I will not eat it on a train or in the rain.
Our old friend Jesse over at PlasticMind.com showed us a site that just had to be checked out. But I just spent a good half hour building atoms on the PBS web site. Flash has the ability to be interactive, and this seems to be a great method to instruct. For the first time since 1982, I learned something about physics and atoms.
When I was in school, they didn't have up and down quarks, just plain old nutrons and protons. It turns out that Mr. McVee didn't tell us the whole story, but PBS does it with flash in a way that informs us and teaches us something instead of the usual Flash eye candy that just rots the brain.