Maps
Crowd-sourcing for Disaster Response Through OpenStreetMap
Role of voluntary initiatives in building spatial data infrastructure
Osm Quality Assessment 2008
Open street map final ppt
GIS for the Masses: Volunteered Geographic Information
Africa4u
ITB Tutorial
開放資料: 全球化的草根性運動
A free map of the world
AGI georant: The grass is always greener ... in defence of the Ordnance Survey
Crowdsourcing tools and examples
