Chart Watch Extra: Billboard’s Year-End Charts

If you like charts, Billboard's year-end issue is Thanksgiving and Christmas rolled into one. The issue contains almost 300 year-end charts. More than 100 are available now to the general public at Billboard.com. More than 440 (!) are listed at billboard.biz/charts. (That might be too much even for me.) And do we learn from this blizzard of information? A lot, though some of it confirms the obvious. You will not be shocked to learn that Adele's 21 was the year's best-selling album or that "Somebody That I Used To Know" by Gotye featuring Kimbra was the year's top single. But did you know that that they were also #1 for the year in Canada? Or that "Somebody…" was also the year's #1...