Most websites already have a couple of social media buttons on them, most common being the "Like" button, "+1" button, "share" button, "tweet" button, etc. But today Facebook announced plans to add another optional button to put on your site - the "Subscribe" button.

Facebook launched the subscribe feature (similar to Twitter's "Follow" feature) in September, but hasn't made the button available in the developer section of Facebook previously.

There are no further details about the launch at this time, but I can assure you the "Subscribe" button will be a button worthy of being added to your site when the time comes!