The digital revolution and the resulting datafication of society provide large opportunities for empirical research, also in criminology and crime research. This doctoral research explores the empirical opportunities and prospects of new and emerging data sources for environmental criminology. First, this research summarizes prior empirical work with new and emerging data sources in environmental criminology. Second, the empirical studies in this research involve using virtual methods such as Google Street View images to measure physical disorder and crime prevention, mobile phone data for calculating crime rates and to improve predictive models, and user-generated ratings to understand the quality of place management and its effects on crime at micro places. Third, building on this empirical work, two frameworks are presented that set the stage for an epistemologically and methodologically responsible use of new and emerging data sources in environmental criminology.