On-line newspapers, information agency, blogs and personal websites, thematic media are monitored to highlight the pattern of perceptions on the urban space. This monitoring activity leads to the creation of an atlas that will produce - in real-time - different maps based on news sources, themes, and time. The atlas allows users to understand the urban space as a function of media attention and biases and social and cultural diversity of the city itself.
In keeping with the xkcd love, here is the updated map of the internet (or online communities) If I had to pick a public space out of the internet, it would probably be Facebook, which is by far the largest on this map.