stumbled over Typelyzer which tries to define Myers Briggs Type Indicator. i immediate tried it out using my own blog http://trent-intovalue.blogspot.com/
viola: this blog is classified as INTJ
does this fit? well, it at least fits to the content of my blog.
how does it work?
they using free http://www.uclassify.com/ engine for text classification based on content similarity. they trained their classification with many reference material created by persons known and classified as one of the different types.
to identify psychological preferences based on blog entries is another great experiment to use available information and draw conclusions.