During the Medieval era, guilds were a way for companies, individuals, and organizations to come together to develop best practices for their trade. James Pearce is the head of open source at Facebook, and he is looking to bring the guild model common in England to the open source tech industry in the US. He is launching TODO, a backronym for “talk openly, develop openly” that seeks to help businesses understand how to use open source and how to run their own open source projects.