From the Tampa Tribune, 50 Things We Know Now That We Didn't Know Last Year, including:

...3. Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
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15. Americans spent almost $32 billion on toys during 2005. About a third of that was spent on video games.
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21. Two previously unknown forms of ice - dubbed by researchers as ice XIII and XIV - were discovered frozen at temperatures of around minus 160 degrees Celsius, or minus 256 Fahrenheit.
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24. At least once a week, 28 percent of high school students fall asleep in school, 22 percent fall sleep while doing homework and 14 percent get to school late or miss school because they overslept.
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39. The common pigeon can memorize 1,200 pictures.
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49. One of the most effective ways for athletes to recover after exercise is to drink a glass of chocolate milk.