I wrote this up based on some questions in our recent BI class where we spend almost a full day on the basics of Reporting Services. Not the most exciting topic, but useful at times. I've still got some writing to do to finish explaining the security options for datasources which was also a topic that came up. From a teaching perspective it's useful to create content that supplements courseware and a nice perk is you usually learn something in the process.
Article is posted at http://www.sqlservercentral.com/columnists/awarren/3184.asp