This document summarizes a presentation about how communities and social media are empowering people and changing businesses. Some key points made include: - 36% of American adults use Wikipedia showing people's willingness to contribute online - There are over 100 million blogs and more podcasters than radio stations, showing the growth of user-generated content - Companies are using social software for tasks like innovation, customer support, and publishing by tapping into community wisdom - Examples like Dell Idea Storm, iPhone, eBay, and Prosper.com show how communities can innovate, support products, sell goods, and provide financing - Publishing is becoming more communitized through self-publishing platforms like Lulu.com that don't