Search and play a wide variety of popular music for free with web site Songza. In a nutshell Songza is a search engine for music—most of which is live—that can stream songs as soon as you click on them and create and organize playlists on-the-fly. Beyond that you can share songs via email, with a simple link, or embedded on a web site (as I've done above). Songza isn't the first site aiming to fill the YouTube-of-audio shoes (see Hype Machine, which is incredible), but if you've...