Please note: some material here may be subject to copyright and therefore will restrict free and open education and learning. I am obviously against this, but I must follow the law accordingly. If you own any material here or believe that any copyright law has been infringed please contact me
here, and I will remove the document(s).
However, if you support free and open source education please support
http://cnx.org/ (the largest library of open source education under Creative Commons). Things are better when shared, especially something as powerful as education.