(the following movies are downloadable from youtube, visibility may depend on your browser / network filters)
The following are unedited registrations of the course by professor Mauro Brunato at University of Trento (Spring 2011). NOTE: this is not a tutorial but a real course, not watered down (do not click if you do not like theory and math).
1: The PageRank Algorithm
2: Computing PageRank scores
3: Representing data, distances and similarities