Have fun with the introduction in the large Oekonux discussion.
The introduction is known as
being a recursive German acronym for
Oekonux Einführungskladde ohne Nutzungsexklusion
Oekonux introductory blotter without use exclusion
It developed from material for talks by Stefan Merten, Benni Bärmann and LutzH. It is maintained once in a while. A more current version is available under http://en.wiki.oekonux.org/Oekonux/Introduction.
The blotter may be used easily for talks in MagicPoint format and there is a German version, too. Besides this it is available as simple text document, in PostScript or LaTeX or as a self-contained HTML document.