Changes

[http://oss-watch.ac.uk/ OSS Watch] provides some background info on the use, development, and licensing of free software, open source software, and open source hardware. However, it doesn't do a good job of explaining the GPL, or the difference between copyleft and open source. It does present some interesting "stories" about the history of some projects like [http://oss-watch.ac.uk/resources/cs-exim Exim] and [http://oss-watch.ac.uk/resources/mediawiki MediaWiki]