N-gram tools

1) http://homepages.inf.ed.ac.uk/lzhang10/ngram.html

2) Google Web N-gram
2a) Google Web N-gram Viewer: http://ngrams.googlelabs.com/
2b) Google Web N-gram Patterns: http://n-gram-patterns.sourceforge.net/

3) Microsoft Web N-gram: http://web-ngram.research.microsoft.com/info/

4) N-gram Statistics Package: http://ngram.sourceforge.net/

5) CMU Language Modeling Toolkit (version 2): http://www.speech.cs.cmu.edu/SLM/toolkit.html

6) N-gram Extraction Tools: http://homepages.inf.ed.ac.uk/lzhang10/ngram.html