I've spent lots of time at Metalab, the hacker space in Vienna (http://metalab.at/wiki/English http://metalab.at/wiki/English) -- I initially met all my current

I've spent lots of time at Metalab, the hacker space in Vienna (http://metalab.at/wiki/English http://metalab.at/wiki/English) -- I initially met all my current startup co-founders there, made dozens of good friends, worked on several collaborative projects, held and attended workshops, etc. I'm sure there's lots of variety among all those spaces listed on the site -- apart from Metalab, I've so far only been to three others (C4 in Cologne, CCC-B in Berlin and Noisebridge in SF), but all of those would be excellent places to find likeminded people to work on projects together -- which is especially important in places that aren't otherwise known as startup or technology hubs, like Vienna. They're not necessarily the best places to actually work at (too much going on, people coming and going, using it socially rather than for productivity), but if you're in a city lucky enough to have one and you've never checked it out, you're definitely missing out. The only thing I dislike is when routine sets in and it starts turning into a hangout for a rather static group of friends -- openness is an extremely important property to prevent that from happening. So look up the one nearest to you and go knock on their door: I'm sure it'll be worth your time. And if there's none nearby and you got a year or so, consider starting one ;)