Things on the site itself that may be of interest to students or philosophers of any age or generation include complete online books of poetry, various support materials for the study of physics, and links related to beowulfery. All materials on this site that are authored by Robert G. Brown are Copyright 2004. The details of their Open Public License (modified) can be viewed here. If you use or enjoy anything at all on this site -- free textbooks, stories, programs, or other resources, consider hitting to help spread the word so others can find it as well. Note, Robert G. Brown is generally either rgb or rgbatduke on many external sites crosslinked here.
There are lots of (free, GPL) resources on this site that you might find useful or interesting that you can reach by following the links above and/or to the side. Current "bestsellers" include: