Saw this a while back, but I forgot to post it. It’s a very cool interactive map. We’re almost trading evenly with Portland here in Austin. There it is: http://www.forbes.com/special-report/2011/migration.html
The Discovery Channel website has an interactive globe that lets you view historical weather patterns in varying detail. There are a lot of features to explore, like World News, Featured Stories (spin the globe to find the weather featured), and more detailed info if you follow links (you’ll need to enable popups).
Experiment with Childrens virtual neuron to see what conditions are needed to make it fire and what happens when you connect it to other neurons. This interactive feature also provides step-through animations illustrating how electrical currents move through the cell and how it passes signals on to other neurons.