It's interesting and I will keep it bookmarked for occasional use, but the classification into emotional, social and writing tones seem very arbitrary. At least part of the problem is that it seems to be working on single words, most of which are weighted more toward one classification or another based on aggregate use rather than any real context. Tools like this rarely seem to do any analysis at the phrase level, even though phrases of two or three words often contribute significant substantive or structural context. This is odd considering that we already have techniques for identifying statistically improbable phrases as intermediate lexical units (often used for detecting plagiarism).<p>Is anyone aware of work going on in this area? I'm quite interested in lexical analysis, but I'm wary of investing a lot of time just to reinvent the wheel.