Here are a few tutorial slides I prepared with Amr Ahmed for WWW 2011 in Hyderabad next week. They describe in fairly basic (and in the end rather advanced) terms how one might use graphical models for the amounts of data available on the internet. Comments and feedback are much appreciated.

Part 1 Keynote PDF PPT, Part 2 Keynote PDF PPT, Part 3 Keynote PDF PPT