Recently we have seen a trend of increasingly process-aware information systems and architectures. The application of Business Process Management ever more determines the information systems research agenda, as well as the ICT industry. As more process-related data and models become available, techniques have been introduced that attempt to extract intelligence and mine process information. In this paper, we provide an overview of existing Process Intelligence research, and position the concepts and techniques within the Business Intelligence framework, providing a common ground for both current and future research.