Erik Zachte, a data analyst at the Wikimedia Foundation, recently put together an impressive, interactive visualization showing the the worldwide distribution of Wikipedia edits. The map allows you to see the location of editors and the time they made each edit, over the course of a single day – currently May 10, 2011.
Various visualization options are available – an animated map, and two static maps highlighting the distribution of edits over the day. Further options let you switch between Wikipedia’s different language versions, and alter the map’s appearance.
The data driving the animation comes from Wikipedia’s squid logs, which contain details of approximately 400,000 edits per day. Erik has anonymized this to ensure editors can’t be identified. Read more about how it was put together at his blog.