Given that we're deep in the middle of tax season, it's perhaps no surprise that the most popular government Web site is the one that lets you check the status of your refund.

But also on the list are some fun nuggets: A White House petition to remove the governor of Puerto Rico, Alejandro García-Padilla; a daily astronomy photo provided by NASA; an interactive advisory telling folks how to identify and prevent school bullying.

All these insights are now possible thanks to a new informational display created by the federal government. The feed is drawn from a Google Analytics profile that, much like for private Web sites, tells the owner who is visiting what pages on a given domain.

The majority of visitors to federal Web sites — about 58 percent — are on Windows. By comparison, only nine percent of visitors used a Mac.

The numbers are even more interesting when you look at Internet browsers. Twenty-eight percent got to a .gov site with Internet Explorer. That's far higher than IE's overall market share, which some estimates put at 17.6 percent.

Usually, we get a cross-section of the American public by studying things like gender, Zip code, race and age. But this is an altogether different study of the population, one that highlights not just who we are, but what government services we find most useful — and how we're accessing them.

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