I contribute, when I can, to Wikipedia. While it obviously has many problems, I think the movement for the creation of free content alternatives to traditional educational resources is very important. The economic barriers to entry for undereducated are very large, and getting larger. While there is a lot of content provided without charge on the web, it is not distributed in a way that enables people without internet access to use it. Nor do they allow modification for other uses. Copyleft materials, like Wikipedia, give these freedoms.
For many of the same reasons I try to use free
and open source software as much as possible.
Increasingly with only a little effort one can use this
software instead of proprietary alternatives. I use
the following software regularly.
If you're interested in learning more, the Free Software Foundation
and the Creative
Commons are good places to start.
In keeping with this interest, most materials on my website are available under the Creative Commons Attribution-ShareAlike license. Because of the strictures of academic publication, I cannot license my written papers this way. Sorry.
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.