If the techniques of mapping data are multiplied with the growth of software tools capable of implementing them and hardware fast enough to elaborate visualization, collaborative ones, ie allowing a realization shared, they begin to find interesting social applications. Foundcity John Geraci, Christina Ray and John Schimmel is one of them, which allows a community to 'write' a city, so that the location of rituals, signs and micro-events can be included in the common memory. To be updated are London and some large American cities, whose members pin, using the technology of Goggle Maps, with photos and notes can be sent via cell phone, the urban territory. The role of ancient monuments, street signs and gravestones suddenly become obsolete power tools, subverted by the 'inscriptions' single, which rework from below what is important in a territory should keep. While reiterating similar projects, such as Yellowarrow , Foundcity celebrates a fleeting memory, sometimes instant, that somehow still makes sense to build in the rapid perception of space, while it loses more and more pieces on the way of its evolution.