The Amazon MP3 Store offers downloads of 22 Soul and R&B MP3 albums for $2.99 each. That's tied with our July mention and puts many titles well below what iTunes charges, which is generally from $9.99. (For further comparison, we saw 25 country MP3 albums for this price last week.) Choose from artists such as Amy Winehouse, Stevie Wonder, The Temptations, and more. Amazon MP3 downloader is required.