Take a look at this cool new technology, demonstrated by MIT grad student David Merrill. They call it Siftables. The demo is quite something. Although limited in its present shape and form- could be the future of interactive learning.

Wild imagination could point to a little similarity with Yahoo Pipes structure in the way you could create different units interact with each other (some people could kill me for this- but the hardcore pipes users can identify)- though obviously a very different app and use (and even scale).

Enjoy!

Hat tip: @JayOatway