I did not know where this information belonged but I thought it was interesting. The idea is that a group of people get together for a day and improve a back yard in the suburbs. They share ideas and expertise with others. The whole thing is documented on film and then you go on and do another one.
http://www.permablitz.net/?start=5
It looks like they have done a few here in the Burgh, I like the idea of people helping people.