http://www.flickr.com/photos/dekstop/6147160500/
This is one of them, called the London Hackspace, and it’s part of a network of spaces where
people come to tinker with stuff, share tools and ideas and, quite frequently, find other
people to start side projects with.
A lot of their projects tend to have a physical element to them, but I think there’s no reason
why you shouldn’t have a space and meet up with people to work projects that are purely
online. Well, the only reason is that nobody seems to have invented such a space.