Freedom of movement is one of the EU’s fundamental freedoms and the Online Journal on free movement of workers within the European Union is an important resource for people looking for information on this subject. Produced twice a year by independent academic experts coordinated by the Radboud University Nijmingen, under the supervision of the European Commission, this issue looks at EU citizen’s rights, and features contributions from three different experts. The first one looks at the issue of purely internal situations, following the Zambrano, McCarthy and Dereci judgments. The second considers the consequences of breaches of Union law by private parties, while the third discusses obstacles to temporary and part-time EU workers, focusing especially on the free movement of EU au pair workers. This online journal is available in English only.