In case you were wondering, it's a website.

h2g2 was launched in April 1999, and BBC Online took over the running of the site in February 2001.

The Guide is written by visitors to the website - people like you - and already it has thousands of entries on all sorts of subjects. The result is a living, breathing guide that's constantly being updated and revised, driven forward by the very people who use it.

Links to h2g2 appear throughout this Hitchhiker's site. Look for them in the See Also... boxes.