|Why They're Hot:
Apple Inc.'s iTunes continues to evolve. This year the platform added a music-streaming service called iTunes Radio that offers more than 250 DJ- and genre-focused stations, and an option for shoppers to build stations around their favorite songs and bands, including via purchases made on iTunes. And consumers who sign up for Apple's iTunes Match, paying $24.99 a year, can store their music on the web—even if it wasn't purchased on iTunes. With iCloud, the music, movies and TV shows a shopper buys on any device are accessible in his iTunes library on his computer. And if he starts watching a movie, or listening to a podcast or audiobook and stops before it finishes, iCloud remembers where he left off, letting him pick up in the same spot on any of his devices.