How to Post an MP3 in My Facebook Wall

Upload the MP3 file you would like to post to your website using your standard upload process.
Navigate to Facebook at facebook.com, and sign into your account.
Click the status update text box, and enter a link to the MP3 file you are hosting at the end of the status update. If you include commentary about the file, make certain that it comes before the link to the MP3 file otherwise the embedded MP3 player may not be displayed.
Click 'Share.' The MP3 file will be playable from your Facebook wall and your friend's Facebook news feeds.
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How To Find an Embedded URL Address To Upload a Video

Go to the original video hosting website where the video you want to share is posted. Chances are, if you decide to share the video you are already at the page where the video has been posted. If not, find the video you want to share via the website search toolbar. Many websites host a myriad of videos that you can share and post onto your own websites or to your social network profiles.
Look for a “Share” button. The exact location will vary per website layout; however, it is generally located below or to the left or right side of the video. Choose the outlet for which you want to share the video on--for example, Facebook, MySpace, Blogspot or another website. The direct URL for the video will appear.
Copy and the paste the URL onto your selected website or social network profile page.
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