Visualizer for Natural Language Processing

http://code.google.com/p/whatswrong/

An excellent tool for multi-purpose visualization in NLP.

Visual News Readers

Newsmap: http://newsmap.jp. An article about it at here.
Pulse: http://www.makeuseof.com/tag/pulse-free-visual-display-rss-news-reader-ipad/

Spectra: http://msnbcmedia.msn.com/i/msnbc/components/spectra/index.html

AlchemyAPI - Transforming Text into Knowledge

http://www.alchemyapi.com

AlchemyAPI is a series of products of Alchemy company applied for knowledge extraction from text. The name "Alchemy" may make a confusion with Alchemy Open Source AI developed by University of Washington.

It is quite intersting to see how language technologies are used for real applications.

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Cheers,
Vu