TY - T1 - Social networks for volunteered geographic information : A case study of OpenStreetMap SN - / UR - URN:NBN:fi-fe201109225577; http://hdl.handle.net/10138/27787 T3 - A1 - Välimäki, Suvi A2 - PB - Helsingfors universitet Y1 - 2011 LA - eng AB - The world of mapping has changed. Earlier, only professional experts were responsible for map production, but today ordinary people without any training or experience can become map-makers. The number of online mapping sites, and the number of volunteer mappers has increased significantly. The development of the technology, such as satellite navigation systems, Web 2.0, broadband Internet connections, and smartphones, have had one of the key roles in enabling the rise of volunteered geographic i... VO - IS - SP - OP - KW - Geography; Maantiede; Geografi N1 - PP - ER -