timemap.js

Timemap.js is a tool to help show information simultaneously on an online map and timeline. Only items in the visible range of the timeline are shown on the map, giving you a sense of both how contemporary they are and how they are related geographically. The timemap.js library has been downloaded over 1,000 times, including use by Ushahidi.com to track incidents of post-election violence in Kenya, and was featured on the Google Geo Developers Blog.

The timemap.js library is written in Javascript, using the Google Maps API and the SIMILE timeline API. Features include the ability to load multiple datasets and support for KML and GeoRSS. I've released timemap.js as Open Source - you can see working examples and download the code at the project homepage.