Brainstorming, despite the popularity of the term, is one of the most challenging collaborative activities to carry out. While most people think they know how to brainstorm, very few really understand how to consistently make a session work. Ken Thompson and Robin Good share some of the secrets gleaned from "The Art of Innovation: Lessons in Creativity from IDEO, America's Leading Design Firm"

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Your teams are too big: break them up.

Newspapers sometimes run contests to see who can produce the best summary of a epic book in one hundred words or less. Here is my 100-word version of "The maximum team size for effective working" drawing from an excellent article by Christopher Allen entitled The Dunbar Number as a Limit to Group Sizes.

What do Ants, Termites, Graffiti Artists, Cavemen, Teenagers and Town Planners all have in common? They understand the power of Stigmergy to leave marks in their environment as important sign-posts to friends (or foes). Even more importantly they all know the difference between sign-posting and dialogue.

Research published in the Harvard Business Review , Competent Jerks, Lovable Fools and the formation of social networks, (June 2005) shows that when people need help getting a job done, they will usually choose a congenial colleague over a more capable one.