Keynote at the VGI-ALIVE workshop (AnaLysis, Integration, Vision, Engagement), 12th June 2018, Lund, at AGILE 2018, with Dr Stefano De Sabbata (University of Leicester). https://www.slideshare.net/AndreaBallatore/geographies-of-crowdsourced-information-and-their-implications-vgialive-keynote-agile-2018-lund