Douglas Adams’ book and upcoming movie (yay!), The Hichhiker’s Guide to the Galaxy, was turned into a little project of the BBC years ago. The goal was to create an encyclopaedia of
Life, the Universe, and Everything (sound familiar) written by users...sort of like an early wiki. It is now available on its very own
mobile website. The guide consists of thousands of entries submitted by visitors to the main
H2G2 website. You can browse through topics, search, or hit the "Surprise Me!" button for random entires out of the database.
Read more from
this BBC article.