An interesting Initiative I came along via e edgeryders community:

http://edgeryders.ppa.coe.int/share-your-ryde/mission_case/its-time-imagine-your-city

http://p2pfoundation.net/P2P_Urbanism

P2P Urbanism (Wikipedia entry) may be understood as that collection of urban interventions carried out cooperatively by, amongst others, inhabitants, professionals, NGOs, public agencies, researchers, activists, artists, sociologists, and urban scientists meant to study, construct, and repair the city in a way that anyone may choose, participate, share, and modify theories, methods, and implementation technologies at any one time. P2P urbanism is “open source urbanism”, by the people, for the people.
Urbanism as a shared, bottom-up process is in historical evidence since the beginning of civilization. It follows natural patterns belonging to the intrinsic logic of space. Proposing a peer-to-peer urbanism approach today has deep implications, not only about the very discipline, but about society and politics.
Extract from “A Definition of Peer-to-Peer Urbanism” — P2P URBANISM is an innovative way of conceiving, constructing, and repairing the city that rests upon five basic principles:
1) P2P-Urbanism defends the fundamental human right to choose the built environment in which to live. Individual choice selects from amongst diverse possibilities that generate a sustainable compact city those that best meet our needs.
2) All citizens must have access to information concerning their environment so that they can engage in the decision-making process. This is made possible and actively supported by ICT (Information and Communication Technology).
3) The users themselves should participate on all levels in co-designing and in some cases building their city. They should be stakeholders in any changes that are being contemplated in their environment by governments or developers.
4) Practitioners of P2P-Urbanism are committed to generating and disseminating open-source knowledge, theories, technologies, and implemented practices for human-scale urban fabric so that those are free for anyone to use and review.
5) Users of the built environment have the right to implement evolutionary repositories of knowledge, skills, and practices, which give them increasingly sophisticated and well-adapted urban tools.