geotagging

See the following -

Citizen Cartographers Fill The Gaps In Maps

Hal Hodson | New Scientist | July 5, 2013

...[M]aps are a vital resource, especially when deciding what infrastructure to build or in the event of a humanitarian crisis. Now teams of mappers are working to chart some of the most obscure corners of the developing world using OpenStreetMap (OSM), the citizen-mapping tool that today has over 1 million registered users.

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Ushahidi Pollution Mapping in Louisiana

Matthew Hall | Civic Commons | June 13, 2012

For the Louisiana Bucket Brigade, a non-profit dedicated to citizen sourced pollution monitoring, the Ushahidi platform for crowdsourced reporting and mapping was a natural choice for their already impressive toolset. Read More »