Twitter corpus for Sentiment Analysis from a class (cs224n)at Stanford.
LingPipe is tool kit for processing text using computational linguistics. LingPipe is used to do tasks like:
* Find the names of people, organizations or locations in news
* Automatically classify Twitter search results into categories
* Suggest correct spellings of queries
S. Bergsma, M. Post, and D. Yarowsky. Proceedings of the 2012 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, page 327--337. Association for Computational Linguistics, (2012)