Okay, I don’t know if you have already played with Twittervision or not. It has been around for a while, but , I just discovered it the other day and sat there staring at the screen for quite a while, pretty amazed. It allows you to see twitter posts as they are happening, but within a globe or map view. You also have the option to allow it to track your own tweets. Here are a few clips of what it does. First, the 3-D version:

[youtube=http://www.youtube.com/watch?v=x90Y0VKyXV4&rel=1]

And there is also this 2-D view of the same thing:

[youtube=http://www.youtube.com/watch?v=DAP0IlpHAwo]

I am not sure what the educational value of it is - or if there is one. If you have any thoughts, please share!