VersuS is a series of works about the possibility to listen in real-time to the emotions, expressions and information generated by users on social network and using ubiquitous technologies, and to publish them onto the cities which they are related to. A scenario emerges according to which it becomes possible to realize information landscapes which are ubiquitously accessible and which change our experience or urban spaces. These projects also suggest the possibility to use these methodologies and technologies to promote novel forms of participatory practices in urban spaces, for decision-making, policy-making and urban planning and design. [youtube http://www.youtube.com/watch?v=gCtsQEdwTJA&version=3&hl=en_US] see an updated version of the VersuS project here: http://www.artisopensource.net/versus-cities/