Implementation, co-written by Scott Rettberg and Nick Montfort, is a located narrative text, a stickers novel with its own website. It is supposed to be read as hypertext. A Flickr account with all the images, tagged with different types of meta data (GPS data included), has been created as well.
Rettberg discusses the impact of the stickers on the environment, but also the effect the environment has on the stickers. The environment, as well as Rettberg himself as the one who places them there, are somehow changed by the interaction that happens.