Internet
From Tardis Wiki, the free Doctor Who reference
The Internet was a worldwide computer network on Earth that rose to prominence by the early 21st century. UNIT maintained a website with restricted access sections that allowed remote launch of non-nuclear UK missiles. (DW: World War Three)
Search-wise.net was a search engine operational in 2005. Rose Tyler used it to search for information about the Doctor, which led her to Clive's "Doctor Who?" website. (DW: Rose)
In 2012, Henry van Statten was the self-proclaimed owner of the Internet. By that point, connections throughout the Internet became sufficiently fast for a Dalek to be able to download its entire contents within seconds. (DW: Dalek)
