Gmail has its own built-in audio player for use with file attachments. You can put it to work as an online MP3 player by using labels and mail filters to sort your files.

First, set up a label called MP3. Next, set up a filter that searches for MP3 content by clicking Create a Filter at the top of the screen. Enter “mp3” in the “Has the words” field and check the box marked “Has attachment.” This will search for any messages with music files attached (including any you may have uploaded using the GMail Drive Shell Extension mentioned earlier). Now click Next Step and check the box marked “Apply the label” and choose the label MP3. Now any time you want to pump up some jams, you can click the MP3 label on the left side of your screen and pick a tune from the list.

Now you can enjoy your collection of mp3 anywhere as long you have internet connection