XanaduTed Nelson's Xanadu is a commercial dream project for a world-wide unified electronic library.
Now it's become Free software Udanax.
It is also critiqued by the Electronic Labyrinth.
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). Actually, the Xanadu implementations didn't include any intellectual-property related features, although Ted Nelson surely wasted lots of time on that kind of issue.
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