Map of the Internet (blacklisted)
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.