Lean Coffee is a structured, agenda-free meetup (http://leancoffee.org/) where curious people (agilists or not) come together to collaborate in learning. Bring your own topic to discuss or simply join the fray.
Note: this meetup will NOT be recorded for the Agile Coffee podcast. To participate in a recorded session, RSVP to a Podcast meetup of this group (usually Saturday mornings). Podcast available on iTunes.