Word Frequency Websites
TagCrowd: create your own word cloud from any text
Create your own word cloud from any text to visualize word frequency.
Improve your writing with myWriterTools writing software
Powerful writing software and proofreading tools. Counts words and phrases; graph Flesch-Kincaid score; fix formatting; find improperly used words; jargon and cliches; make documents gender neutral; answer grammar/style questions; convert U.S. to U.K.
Concordance: software for concordancing and text analysis
Concordance: software for text analysis. Gain better insight into e-texts.
Litersta.com
Litersta - textual analytics - software leverages statistical algorithms to programatically locate, and extract, overall document sentiment, word frequencies, and document similarities.
The Wordnik Blog
The blog of Wordnik.com: connecting people with meaning
State of the Union
State of the Union is a web based information system that provides access to data mined from the corpus of all the State of the Union addresses from 1790 to the present.