I've been hovering around the open data movement for a while. I lived in London through the early development of what ended up becoming They Work For You around the amazing NTK-driven London tech scene. I've not actually done anything in the space though. I cheered from the sidelines as a bunch of Australians ported some of the tech to the Australian parliament and have been a heavy user of Planning Alerts. Up to now though, I haven't even managed to make it to the pub meetups. Having kids will do that to you!