A very interesting looking site, that wants people to try and test their ideas about using the web to help improve our living spaces.
"Twitter bots, aggregators, social software, mobile apps – we use these things more and more in our daily routines to make our lives better. But can we also use them to remake our cities altogether? DIYcity is a place where people figure these things out by actually building and launching applications that address the problems around them." [link]