Ted Nelson's Xanadu is a commercial dream project for a world-wide _(unified) electronic library.

Official site: <A HREF="http://www.xanadu.net/">xanadu.net</A> and <A HREF="http://www.xanadu.com.au">Australian home</A>

Now it's become Free software <A HREF="http://www.udanax.com/">Udanax</A>.

It is also critiqued by the <A HREF= "http://jefferson.village.virginia.edu/elab/hfl0155.html">Electronic Labyrinth</A>

Xanadu failed, and was vanquished by the WWW, because it lost all its time trying to adapt technology to intellectual property law, instead of developing the best technology, and letting law adapt to it (by dropping inapplicable intellectual property).
