Citizens as sensors: the world of volunteered geography

Photogrammetric Engineering and Remote Sensing

John Nicol, B. King · UCL Discovery (University College London) · 2007 · 9.4K citations

Computing, Earth Sciences, Geoinformatics +14

Web Mapping 2.0: The Neogeography of the GeoWeb

Muki Haklay, Alex Singleton, Chris Parker · Geography Compass · 2008 · 567 citations

Computing, Geography, Geographic Information Science +7

Volunteered geographic information: future research directions motivated by critical, participatory, and feminist GIS

Sarah Elwood · GeoJournal · 2008 · 428 citations

Social Sciences, Geography, Human Geography +16

The web-wide world

Declan Butler · Nature · 2006 · 363 citations · Full text

The Ghost Map: The Story of London's Most Terrifying Epidemic and How It Changed Science, Cities, and the Modern World

Jonathan Borak · Journal of Occupational and Environmental Medicine · 2007 · 296 citations

Veterinary Medicine, Infectious Diseases, Urban Health +9