At the best unconference experiences, contagious leadership abounds. And isnâ€™t this the foundation of every social networking site, every blog, and every wiki? Isnâ€™t this the true definition of collaboration? The sum of the parts is always greater than the individual. Together, we are stronger, smarter, and more creative. Leaders who get this are not only better for it, but can lead others to create communities of excellence.