The "Getting Down With..." series is a collection of short, easy to use tutorials by high school students and others who want an introduction to a topic. Also there is an HTML template that you can download to make your OWN "Getting Down With.." project. Enjoy!
A set of comprehensive tutorials by Kevin Cole. The tutorials include topics relating to linux and VAX and other similar fields.
A collection of projects / case studies in using free software geospatial information science (GIS) projects.