barcamp
n.— «There’s also something called a “barcamp” or “unconference” in which participants gather in an open, unstructured environment to hash out new ideas. Then they share them with others via web channels such as blogging, photo-sharing and “wiki-ing” or editing a shared item.» —“Eureka! Entrepreneurship” by Chuck Howitt Record (Kitchener, Ontario) Sept. 25, 2007. (source: Double-Tongued Dictionary)