This is a great demonstration of the power of social networking for positive good.
Ushahidi takes Google Maps and allows contributors to add real-time, geo-tagged data and postings, focused on areas of conflict or natural disasters.
It's a brilliant learning tool to show how areas of man made or natural disasters cope.
Have a look at the Afghan website, Alive in Afghanistan, which gives a very different picture to the mediated news that we see, read and hear in the mainstream Western media.
It makes for fascinating and disturbing reading, taking you into the heart of a conflict zone in a much more accessible way than normal news outlets can manage.