After Lala.com closed down, I did a serious search for the next best streaming music site. I ended up choosing MOG after several days of comparisons and became a paid subscriber until my listening habits changed. Now days, I mostly use Pandora because I enjoy passive listening and discovery. If I hear something I really like, I jump over to YouTube or another service to dig deeper. Spotify is decent, but its catalog is surprisingly limited for some genres and I prefer a browser-based service since I use my Cr-48 often. Rdio has a good selection, but lacks some of what MOG has. MOG lacks some of what Rdio has. Grooveshark has one of the best libraries, but it can be slow to get newer releases and doesn't have a good mobile app. Overall, I use a combination of Pandora, YouTube, Grooveshark, MOG, and Rdio.