Ok usually i don't write ANYTHING here but when i saw this i just had to tell someone. well i thought few million would be enough so here it is:
http://mblog.lib.umich.edu/~rdivecha/archives/2006/02/the_world_of_sm.html
If that link doesn't work maybe a
Coralized link might help.
I'm telling you all, the next big thing. Its like investing the mouse.