OpenArch is a 5 Year long EU Project which includes nine archaeological open-air museums, the University of Exeter and EXARC. It runs until the end of 2015. Project goals are to improve these museums in the fields of management, visitors, crafts and science. Archeo Interface was hired to be the project’s community manager. We advertise the largest events of the partners as well as any OpenArch related event including the 10 conferences, numerous workshops and smaller events. We also manage the project’s Twitter account as well as several Facebook groups and pages and LinkedIn groups with a total reach of over 5,000 followers. We are also active on other social media on behalf of OpenArch and its partners. With building up our own experience on social media, we also are able to teach the others where needed on how to handle these channels: Twitter for example is no one-way street only!