Just read about the GNU online encyclopedia Wikipedia ( http://www.wikipedia.com ), surfed in and checked to see if they had articles on Ogg Vorbis.

Lo and behold

http://www.wikipedia.com/wiki/Vorbis

That is a very interesting site... trying to create a completely open collaborative encylopaedia. I just followed your link and had a look around some of the other entries -- it looks like you could spend far too much time there!