The two most prominent online music retailers, iTunes and Amazon, released their rundowns of 2010's top-selling albums and singles Thursday. Eminem's Recovery was the best-selling album on iTunes during 2010, while Taylor Swift's Speak Now rang up the virtual cash registers at Amazon.
On the singles side, Train's ubiquitous "Hey, Soul Sister" topped the iTunes chart, while the best-selling song on Amazon was Katy Perry's Snoop Dogg-assisted ode to the Golden State "California Gurls."
iTunes also named Eminem its artist of the year; in addition to Recovery topping the albums chart, he had two singles, "Love the Way You Lie" and "Not Afraid," in the store's year-end top 20.
Below are the top 20 albums and singles lists for Amazon and iTunes. First, though, a note of caution: These lists shouldn't be held up for apples-to-apples comparisons as far as trying to deduce raw sales numbers. For one thing, Amazon's album tally includes both records sold via its mail-order unit and its digital