In the last of a series of posts based on a presentation given at last year's Online Information conference in London, the Guardian's tag manager Peter Martin and information architect Martin Belam look at how our tags are used to link to the external world, improve search and navigation, and to place components on our pages

In part three of this series of posts based on a presentation given at last year's Online Information conference in London, the Guardian's tag manager Peter Martin and information architect Martin Belamlook at how we keep our tags useful for the audience, and in line with house style

In part two of this series of posts based on a presentation given at last year's Online Information conference in London, the Guardian's tag manager Peter Martin and information architect Martin Belam look at the use of folders to build a taxonomy from the tags applied to content

Last year at the Online Information conference in London, the Guardian's tag manager Peter Martin and information architect Martin Belam gave a presentation called Mapping the Guardian's Tags to the Web of Data. In a series of posts for the Developer Blog, they outline why Tags Are Magic