The document provides an overview of the Extended Semantic Web Conference (ESWC). ESWC is the main European conference on semantic technologies that has been organized annually since 2004. In 2010, it had approximately 300 participants. ESWC features a multi-track technical program, invited speakers, posters, demos, workshops, tutorials, a PhD symposium, and co-located events. It is coordinated by an international steering committee and will be held in Paphos, Cyprus in 2012.