From Christian Nold’s Biomapping website:
People re-explore their local area by walking the neighbourhood with the device and on their return a map is created which visualises points of high and low arousal. By interpreting and annotating this data, communal emotion maps are constructed that are packed full of personal observations which show the areas that people feel strongly about and truly visualise the social space of a community.
Sample maps in different formats are available online for locations like Westminster, San Francisco and Greenwich:
And a new book called Emotional Cartography: Technologies Of The Self has just been released; a full copy is available in PDF format under the Creative Commons license.
Very cool. Thanks for passing the word.