You can use the Ushahidi Platform for information collection, visualization and interactive mapping.
Free & Open Source
The Ushahidi Platform is free for you to download and use. It is released under theGNU Lesser General Public License (LGPL).
One of the most powerful ways to visualize information is to display it on a map. The Ushahidi platform give you rich information mapping tools.
Track your reports on the map and over time. You can filter your data by time and then see when things happened and where, as it’s also tied to the map.
Multiple Data Streams
The Ushahidi Platform allows you to easily collect information via text messages, email, twitter and web-forms.