From the site: “The Reason! Project is developing a new method for improving reasoning skills. The method is centred on the Reason! software learning environment.”
This page is a truly lovely list of resources.
Following up on the project’s principal (Tim van Gelder), I found this short but sweet list of quotes concerning philosophy as well as a link to AusThink, where he’s again principal. That site hosts his “Critical Thinking On The Web” (“A directory of links to online critical thinking resources.”)