Found on Information Aesthetics, this is a map of all 4,294,967,296 IP addresses in the world. Blocks of addresses are shown grouped together in squares based on the owner (ISP, corporation, goverment, university, etc.), and individual addresses are shown as grey dots. The IP addresses that are listed on the Spamhaus XBL blacklist are shown as red dots, representing suspect addresses.
I found three different images showing the complex network of ownership between the automotive companies. Three different attempts at making these complex relationships easier to understand. This first one is a scan from a magazine, but I can't find any reference to which actual magazine it came from. Charted out like a subway map, it's pretty easy to follow.
This next one from Too Many Cars is charted like a family tree, or a mind map. It's the easiest the follow, but probably the least aesthetically pleasing. Online the image is broken into smaller pictures so you can zoom closer, but is also available as a large poster in PNG or PDF formats. The data for this one is from 2006, and is the most current of the three.
This last graphic claims to show the ownership mix in the auto industry as a form of bubble chart, but I can't find any date or source data link. I think the bubble sizes represent something, like size of the company or ownership, but I can't tell. So I can't tell how accurate this is. The image is on Tinypic.
From A Beautiful WWW, this image is a pretty good attempt to visualize the article revision activity on Wikipedia. An article explaining the visualization is here, but the image is a combination of images are from the most linked-to articles, and the size of the colored dots represent the amount of revision activity in the linked articles.
A really cool interactive version was made using the Google Maps API so you can zoom in and move around the graphic.
Here's another one from Chris Jordan. Is it art, or is it infographic?
The image shows 60,000 plastic bags, which is how many bags are used in the U.S. every 5 seconds! The picture currently on display at the Paul Kopeikin Gallery in Los Angeles is 5ft x 6ft large so viewers can step up close to see all of the details.
Wired magazine calls infographics like this "infoporn". I guess you could call this a version of a bubble chart, but it shows a comparison of what people knew in 1989 vs. 2007. Separately it shows knowledge of three questions based on the respondent's usual source of news.
I can't tell how big the sample size was, or what type of people they interviewed. It quotes the source as the Pew Research Center for the People & the Press, but that alone isn't enough to make it credible.
Found on Visual Complexity, this chart from 1924 is an interesting variation of an organization chart. With the authoritarian leader in the center, the subordinates are mapped outward from the center. Rings at different radii show peer level responsibility.