"Geogrowd - Creating a Geospatial Knowledge World" aims at establishing a fertile research environment by means of a training network that will promote the GeoWeb 2.0 vision and advance the state of the art in collecting, storing, analyzing, processing, reconciling, and making large amounts of semantically rich user-generated geospatial information available on the Web. Specifically, activities will focus on (i) exploiting user-contributed geospatial data, (ii) Web-geodata management and (iii) efficient means for data collection and dissemination, e.g., mobile computing.