I'm not above looking silly when it comes to sussing out the name and artist behind a song that hits my ear in a particularly pleasant way. I'll walk around stores and streets and, should the beat of something strike me, I'll whip out my phone and hold it high above my head as the mobile app Shazam, a music-recognition service for smartphones, listens along with me. Should the song be in the service's database—it claims to have some 15 million post-1950 songs on file—my phone will light up with the title and the artist responsible for the track, with handy links to download it legally... More >>>