Nextgov

What are the most popular Web icons on the Web? This is a visualization of the top 2 million "favicons," sized by relative popularity of the sites, by Nmap. Go here to use the online viewer to drill down into the grpahic. Try to find your federal agency or even a federal agency.

The Nmap Project produced the visual. Nmap, or Network Mapper, "is a free and open source utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime." More here.