CeaseFire began operations 10 years ago in one of Chicago’s most violent neighborhoods. Within a year, the project reduced shootings by 67%. These results have since been replicated dozens of times in Chicago, other US cities and abroad including Iraq. An extensive three-year independent evaluation funded by the US Department of Justice provided statistical proof that CeaseFire’s model was directly responsible for the dramatic decline in killings. Indeed, “this evaluation scientifically-validated CeaseFire’s …

Ushahidi is excited to announce it’s deployment of Uchaguzi TZ, an elections monitoring program for Tanzania’s October 31st national elections. The platform has built off the successes of Uchaguzi Kenya to include 2,000 monitors in Tanzania, 30,000 trusted sources, plus messages from the crowd. Uchaguzi TZ’s shortcode is 15540, and we’ve already started receiving and mapping messages a week before the election. Check out the map as it continues to fill up with reports …

One of the big requests we’ve had from users of Ushahidi products is “What if I don’t know what feeds or sources to follow?” Whether it’s from humanitarian groups or corporates, some organizations have the cold-start problem of not knowing who to to listen regarding specific subjects.

Alongside the next release of the SwiftRiver platform we’re releasing a new application called SwiftMeme, our source discovery and meme tracking application.

SwiftMeme early mockup

[Guest blog post by Maurits van der Vlugt, a Spatial Information Strategist, based in Sydney, Australia. He is recognised as one of Australia’s leading authorities in the design and implementation of (interoperable) spatial data infrastructures, and web delivery of spatial data.]

The 2009 Black Saturday bushfires in the state of Victoria, Australia, burnt the equivalent of 1 million football fields, displaced 7,500 people across 78 townships, resulting in 173 dead and 2000 houses lost. …

This post was originally posted on Anahi Ayala Iacucci’s  blog Diary of a Crisis Mapper. Anahi is a consultant and Crisis Mapper and has worked or helped in more than 13 Ushahidi deployments, starting with Ushahidi Chile when she was a student at Columbia University, to her lately involvement with PakReport in Pakistan and U-Shahid in Egypt.

I realized that in my work as consultant and in my voluntary …

[Guest blog post by Marek Čaněk, co-founder of praguewatch.cz and a PhD Candidate at Prague's Charles University and an activist in urban and migrant workers' issues]

Praguewatch.cz is an internet guide to Prague’s controversial cases of urban planning, big development projects, parks and allotments under threat and alleged cases of corruption and clientelism. A group of people mostly interested in different aspects of urban development (a human geographer, sociologist, transport …

Today is the six-month anniversary of the explosion of the Deepwater Horizon oil rig that killed eleven workers, injured seventeen others, and triggered the largest marine oil spill in history. Communities in the region continue to face long-term economic and environmental impacts from the oil spill, but international attention has shifted away from recovery efforts. Gulf Coast residents are feeling forgotten.

To mark the anniversary, Ushahidi is collaborating with the Louisiana Bucket Brigade to …

[This is a guest blog post by Gregory Asmolov, an intern at the Berkman Center for Internet and Society, contributing editor to “Runet Echo” and a Russian language blogger. He and Alexey Sidorenko deployed the Ushahidi platform Russian Fires.ru].

I landed in Moscow in the end of October. It was still relatively warm, but already nothing reminded the unprecedented wave of heat and smog caused by wildfires that affected lives of entire population of

[Guest blog post by Catherine Caron, a postgraduate from the London School of Economics and Political Science, where she got a MSc in Development Management and wrote her dissertation on "The Impact of Web 2.0 Tools on the Humanitarian Aid Industry:  A Case Study of the Response to the 2010 Haiti Earthquake"]

The last decade saw the rise of both costlier natural disasters and more interactive web features. Therefore in my MSc dissertation this summer, I tried to look at how workers …

Below you’ll find the basis for my Ignite talk from ICCM10 in Boston originally titled “Veracity Blues: The Trouble with Crowdsourcing”.

Would you trust these guys with your data?

Not based on appearance, but experience or lack thereof. It depends right? You might trust them to lead you to a Heisman Trophy, but you probably wouldn’t trust them to lead your disaster relief initiative. This is because expertise matters only when coupled with …