bibleQuran [pitchinteractive.com] by datavis design firm Pitch Interactive reveals the frequency of word usage between two of the most important holy books: the Bible and the Quran.
The densely populated interactive visualization allows people to search for any word (and similar variations of that word) to explore its frequency in both texts. As each verse is always visible, one is able to compare the relative density of ideas and topics between both passages. For instance, one could select verbs that represent acts of 'terror' or 'love', and investigate which book discusses the topics more. The appropriate little rectangles, each representing an according verse, which include such this chosen word, are then highlighted, and can be read in detail by hovering the mouse over them.