The
IQ League maintain a "60 Second IQ Test" online. Interestingly, they correlate the results of this test with a number of statistics available from their server logs. Along with the geographical distinctions like city and country, the referrer and OS/Browser user-agent strings are also mined, to determine the
Smartest Browser and OS. Cutting to the chase, the very smartest is
Firefox on Unknown (which internal evidence suggests is MacOS-Intel), and the dumbest, as of this writing, is
IE on WinNT. Quick! Test out and move the bars on the pretty graph! Can we make Slashdot.org the "
Smartest Website in the World?" (It's currently number 2 behind ScienceBlogs.com.)