I often talk about the series, Numb3rs, at meetings and conferences. There is an interesting book (The Numbers Behind NUMB3RS) that talks about the application of math in the series. It is written at a very high level and is a good read. The supporting blog has links to some learning activites constructed around math used in individual episodes. The page also has information for teachers to download episodes to use in the classroom.
The Math Can Take You Places site has some interesting learning activities and for the ultimate teaching tool, check out Explore Learning Gizmos.
The Algorithmist 