The members of the Forum brought skills and expertise in archaeogeophysical prospecting to the interdisciplinary research projects of Topoi. The activities included expert advice, geophysical survey, data processing and interpretation, as well as training courses. For practical fieldwork we used resources and state-of-the art geophysical instruments from geoscientific institutes and our cooperating partner. Mainly geomagnetics, geoelectrics, ground-penetrating radar and micro-gravimetry were used for geophysical prospecting in archaeological field projects in Germany and abroad.