As part of a project for next year I'm trying to learn al the theory I can behind superchargers... while looking around at the Eaton TVS chargers, I came across these videos. They have been done by Sector 111 (Lotus tuners) but seem to be pretty good on the theory side of things so I'm thinking they might be of use to some of you as well.
This one is the introduction, and I've found "part 1" and "part 2" as well... so if you're wanting to know more than just the basics they seem pretty good.

http://www.youtube.com/watch?v=2lfnm72ehss

Russell.