Kris Krug posted a link to The FlickrVerse, April 2005 - a beautiful poster generated from a subset of Flickr users, and their relationships.
The map isn't a complete view on the Flickrverse, but on 2367 users - I'm not in there, but Roland Tanglao is.
It seems to validate this research from IBM's Almaden Research Center that suggests that a map of links between nodes on the web roughly forms a bowtie shape.