h2g2

h2g2
The h2g2 front page on 24 May 2015
Website type
Internet encyclopaedia project
Available inEnglish
OwnerNot Panicking Ltd
CreatorDouglas Adams
Websiteh2g2.com
Registrationopen
Launched28 April 1999 (1999-04-28)
Current statusActive
Content license
Authors retain copyright but grant NPL a non-exclusive licence to distribute
Preview warning: Page using Template:Infobox website with deprecated parameter launch_date. Replace with launched.
Preview warning: Page using Template:Infobox website with deprecated parameter author. Replace with creator.
Preview warning: Page using Template:Infobox website with deprecated parameter url. Replace with website.
Preview warning: Page using Template:Infobox website with deprecated parameter type. Replace with website_type.

The h2g2 website is a British-based collaborative online encyclopaedia project. It describes itself as "an unconventional guide to life, the universe, and everything", in the spirit of the fictional publication The Hitchhiker's Guide to the Galaxy from the science fiction comedy series of the same name by Douglas Adams. It was founded by Adams in 1999 and was run by the BBC between 2001 and 2011.

The intent is to create an Earth-focused guide that allows members to share information about their geographic area and the local sites, activities and businesses, to help people decide where they want to go and what they may find when they get there. It has grown to contain subjects from restaurants and recipes, to quantum theory and history. Explicit advertising of businesses was forbidden when the site was run by the BBC, but customer reviews were permitted.

The content of the project is written by registered "Researchers" on its website. Articles written by Researchers form the "Guide" as a whole, with an "Edited Guide" being steadily created out of factual articles that have been peer reviewed via the "Peer Review" system. The Edited Guide includes both traditional encyclopaedic subjects and more idiosyncratic offerings, and articles in the Edited Guide sometimes aim for a slightly humorous style.