The Internet, mobile and sensor revolutions continue to generate new data and data types, new uses of data, as well as new applications. At the same time, the equations of the data economy are being redefined as authorities continue to open up further their data repositories, whilst at the same time individuals and online communities are generating valuable data and are increasingly making them publicly available. Much of the generated data has a prominent geographic footprint, and this explosion of such volunteered geographic information (VGI) amounts to a massive expansion in our ability to digitize the world. The domain that we aim to address in the workshop has been characterized by terms such as “geographic information retrieval,” “crowdsourcing,” “geospatial (semantic) Web,” “linked geospatial data,” and the “GeoWeb 2.0.” This workshop aims at bringing together researchers and practitioners from the above areas to discuss open research problems and to develop a research agenda for the future. This workshop will also serve as a common platform for the exchange of ideas and results coming from existing research initiatives and projects in the US and Europe that currently investigate this topic.