What are some impressive algorithms or software in the world of AI?

Question

I have always loved the idea of AI and evolutionary algorithms. Unfortunately, as we all know, the field hasn\'t developed nearly as fast as expected in the early days.

Answer 1

I found the recent research of evolution and cooperation among robots very intriguing. This blog entry gives a good summary of the experiment and its results. Most interesting to me was the observed behavior of both martyr AI and "evil" AI.