SynView - A free syntax tree visualization tool

http://www.christian-behrenberg.de/work/SynView.html

Introduction trailer on YouTube: http://www.youtube.com/watch?v=zFi9ldFYlEs

Extremely awesome with 3D manipulation. It may be helpful for people who regularly deal with syntax tree in NLP.

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Cheers,

Vu

True Knowledge - The Internet Answer Engine

http://www.trueknowledge.com/

Just a beta version but very impressive about what it can do for us.

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Cheers,
Vu