Listening to music on a cellphone used to be chore. Connect the cable, find your music and transfer each file manually. Then with the advent of sync software it became easier. Work with your library and sync at your convenience or stick your memory card into your laptop and move the files that way.

These methods were all well and good for your existing collection but you were kinda hosed when it came to getting music on the go. Amazon mp3 app to the rescue. Works great and allows you to buy tracks one at a time and download via 3g network. And the songs only cost a buck. Great!

Have you heard a song and wanted to know more about it? Back in the day you had to wait for the name to be announced on the radio. Then came Shazam. And like its namesake it hit the scene like a thunderbolt allowing you to find out the song info in a few seconds by simply holding your phone to the music source or so it could hear it. Shazam was free, unlimited and awesome, but they have since ditched that model for a premium subscription model. Still, it worked great and if you didn't tag more than five songs a week you would be fine without paying.

I have recently came across 2 apps that let me do more for free. 

Soundhound is like Shazam but on steroids. The app is free and features unlimited tagging. Better yet, anecdotal evidence states it may in fact be better and faster than Shazam ever was. Win.

Mp3 Music Searcher by Eugene Lubcov is a slick little app that allows you to search the net for music and stream or download music tracks for free. No accounts to make. It just works and most music can be found. Its kinda like the glory days of napster, only in your pocket. 

Now the legalities of using these apps I'll leave up to you. But all in all I give Soundhound 2 thumbs up and Mp3 Music Searcher 2 wary thumbs up. 

"Really your honor, I only downloaded copies of tracks I already owned to see how well the service worked. And then I deleted them. Honest."