ushahidi.com – open source data visualization

http://www.ushahidi.com/
We are a non-profit tech company that develops free and open source software for information collection, visualization and interactive mapping.

As a user says:

We wanted to create a platform that allowed geospatial visualization of where major groups/resources exist on [human] trafficking, as well as overlay information about latest cases, news on trafficking and risk areas. Ushahidi allows us to do just that.

What is the Ushahidi Platform? from Ushahidi on Vimeo.