With the proliferation of the Internet as the primary medium for data publishing and information exchange, we have seen an explosion in the amount of online content available on the Web. In addition to professionally-produced material being offered free on the Internet, the public has also been allowed and encouraged to make its content available online to everyone. The increasing popularity of open online communities and social-networking sites, image and video sharing portals, discussion boards, and community wikis has meant a dramatic drop in the barrier-to-entry for casual computer users to generate and upload their content on the Web. The volumes of such User-Generated Content (UGC) are already staggering and constantly growing.In the geospatial context, GeoWeb 2.0 is the geographic embodiment of the Web 2.0 moniker for the next generation Web, i.e., the next generation of geographic information publishing, discovery and use. The objective of CROWDIES is nothing less than to provide means for the channeling of the GeoWeb phenomenon towards the specific needs of the SMEs involved in this project. Specifically, the focus of the project will be on (i) smart data mining and fusion mechanism for User-Generated Geocontent, i.e., to tap into the vast amounts of such content existing on the Web and derive meaningful datasets from it, (ii) tools that support the user in the authoring of such data, i.e., based on a specific SME needs, create Web-based geospatial content authoring tools that allow the inclusion of as many users as possible to create content, and (iii) a means to publish such content and provide related services on the Web as well as on mobile devices. The latter case will lead to the creation of live mobile guides, in which users will create the live content shared with a larger community.Overall, GEOSTREAM will provide the participating SMEs with the tools to be able to turn the oncoming geospatial data tsunami into a compelling business advantage.