Wired points us to a new trend, hackerspaces. They are akin to bike co-ops, urban gardening groups and underground foodies except they are communal spaces for geeks (...its cool to be called a geek these days) to build techy stuff out of old gadgets.

I'm not 100% sure what they are making...but I don't think matters. It's more about getting outside, going to a common space and creating stuff that interests you with other like minded people in the name of a good cause.