great ideas from this post at ideo - on how to be sustainable by your openness to being manipulated.
esp like and think we need to tap into more of this:
We’ve grown accustomed to the Internet as ... rapid adaptability and user responsiveness. ... increasing desire to enable that same flexibility and speed of  responsiveness in the physical public space of our cities. 
However... there are rigid constraints in urban  real estate with limitations from property laws, city ordinances, and  the length of time, effort, and capital it takes to rent, purchase, or  modify property. Despite this, many companies and individual initiatives  are recognizing that the way to capture an audience “in real life” is  to create constantly evolving and participatory spaces that do not yield  to the limitations of the traditional-built environment.
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