Visual net spins literary web (bbc.co.uk) -- "Textarc.org is an interactive program that reproduces the text of more than 2,000 books as works of art. The resulting picture resembles a map of star constellations but with words replacing celestial bodies. The patterns at the centre of the concentric ovals reveal significant themes, characters and their positions in the books."
(Mac comments: They should be analysing Enron documents with this tool. It is impossible to read the HTML text on the site, so here is a link to a readable pdf overview. )