There's one called Purple Haze, in Edinburgh, and another called Beggars Belief in Rhyl. They're the only 2 I know of (at least the only ones with an open door policy). Buddies in Worthing was the highest profile one, but Chris Baldwin & others ended up doing custodial for their association, so I doubt they will be starting up again. If you want to get involved, though, check out the LCA candidates page to see if there's a candidate running near you in the local elections in June (Norwich is the place, I think we've got a candidate for every ward in the city). I'm hopefully gonna be helping the Worthing candidate with her campaign - see if you can help near you, just an afternoon delivering flyers will do, and it's only a few hours.