Facebook has this feature called a share preview that allows users to embed an external video or audio player right into the Facebook newsfeed. You might have noticed this from sites like YouTube.
It's actually quite simple to implement. You just need to add a few extra meta tags so when the Facebook "crawler" comes looking it knows that it can embed the supplied video/audio player.
I was wondering if this type of plug-in already exists for WordPress. It would be great if I could tag a post with an 'mp3' tag for example, and have the appropriate meta tags included on that post page, then if anyone shares that page, the player would be embedded on Facebook.
If this plug-in doesn't exist, does anyone have any suggestions on how I might be able to get started on it?