I've been back in London for almost two years now and haven't met that many people working with Drupal, partly due to working from home I think, but also because there don't seem to be too many events (outside of paid training events and the like) that are aimed at Drupalers in the London area.
As I was looking today to find out if there were meetups happening already that I wasn't aware of, I came across a thread on groups.drupal.org asking about regular meetups, and left a comment to say I'd be interested if there was anything happening. In a city the size of London, there are surely enough people working with Drupal to get a group of people together every now and then for a social event. I for one would love to meet more people in the area who are working with Drupal, and maybe have a pint or two in the process.
By the end of the day, there was a meetup organised: London Drupal Pub Meet- September Meetup. Brilliant!
If you're interested in coming along, sign up to the meetup.com event, and I'll see you there!