The Prediction Market Clusters founded in 2004 in Silicon Valley, are a global commons and open community for prediction markets and collective intelligence networks worldwide. The open and agnostic community is a focused action/research collaboration network of vendors, academia, traders, users, developers, markets, regulators and stakeholders. All are welcome. The goal is to provide Next Practices, awareness, diffusion, adoption and pull-through for enterprise, institutional and consumer prediction markets. PM Clusters conduct popular, distributed leadership retreats for enterprise prediction markets, Wisdom of Crowds, collective intelligence networks and collaborative forecasting worldwide.