This is a Google Talk given by Luis von Ahn, and was my first introduction to the concept of Human Computation. The concept is simple, come up with ways of harnessing the human brain to solve computing problems that current computing platforms can not. What was once a problem domain relegated Artificial Intelligence study is evolving into a method of crowd sourcing human computational cycles in the context of casual gaming.
Curious to know just how anonymous you are on the web? Your browser user agent string combined with the particular set of browser plugins you have installed and other information readily accessible from your web browser create a unique signature. Check out the link to see how unique your signature is. I’m 1 in 1,742,003. And I thought I was special :-)