There will be a collectd Hackathon on September 21, 2013 in Berlin. Stackdriver have booked a conference room at Michelberger Hotel for this purpose.

• What? Hacking on collectd in a social environment: Get to know your peers, discuss the future direction of the project, get real-time feedback on your cool new feature or fix some bugs.
• When? Saturday, September 21, 2013. octo gives a workshop and pyr speaks at monitorama.eu, which takes place the two days prior to the Hackathon. Time is still to be determined, but we'll start some time in the morning and we'll likely leave this open-ended.
• Where? At the Michelberger Hotel (Warschauer Straße 39/40, Berlin (map)). It's right next to the subway and "S-Bahn" (city train) station Warschauer Straße.