Material for the course on Algebraic D-modules (fall 2006).
The book by A. Borel "Algebraic D-modules" contains most of what will be covered in the course.
Bersntein's notes is a very good, albeit concise, exposition of the key results.
A course by J.-P.Schneiders explains some of the basic constructions.
Ben-Zvi's page contains further links.