This is in interesting visualization of wikipedia. At the moment this is static but the author plans to develop a dynamic version of this that might be used to watch the activity of wikipedia in real time. Larger nodes indicate centres of high revision.
Smaller yellow nodes represent link sites and images are gleaned for the first of image on each page. As an aside its interesting what the simple addition of the images does in terms of visualization : this starts to feel like a photograph of the network rather than simple its representation…