As Kristin covered in April, the upcoming OSCON conference will be immediately preceded by an unconference called the Community Leadership Summit, to take place July 18th and 19th in San Jose, California. The event is free for anyone to attend, although if you're planning to attend you should
pre-register. There are some scheduled presentations, panel discussions, and social gatherings planned, but much of the event will consist of free-form discussion on what it takes to build a thriving, productive community around an open source project. More details are emerging on the participants, and it looks like a solid event.