Cybus website
From Tardis Wiki, the free Doctor Who reference
The Cybus website was set up by the BBC in 2006 to help promote Series 2 of the revived series of Doctor Who, specifically the two-parter Rise of the Cybermen/The Age of Steel.
The website was set up as a replica of an in-universe official website of Cybus Industries in Pete's World, as it might exist a short time before the events of the two-parter. It included several pages presenting Cybus products such as EarPods and airships. It also hosted an original short story by Tom MacRae, Lumic, which gave more background on John Lumic and the Ultimate Upgrade™ project.
The website was no longer hosted by the BBC by 2013.