This booklet outlines the main features of online job vacancies and the key characteristics of Cedefop’s new system to collect and analyse them. It accompanies the first release of results based on the collection and analysis of online job vacancies in seven EU Member States. Over recent decades, online job portals have become important recruitment and job search tools. Beyond assisting skills matching, the job vacancies these portals gather can also be used to analyse labour market trends in real time, generating evidence that can inform education and training policies and help ensure that people’s skills meet the needs of rapidly changing workplaces. These insights can complement skills intelligence based on information collected via traditional methods, such as Cedefop’s Europe-wide skills forecasts, the European skills and jobs survey, and the European skills index.