Why are the words “Subscribe” and Facebook in the same sentence?

On September 15th, Facebook released the “Subscribe” button.

This way, one does not have to become a friend in order to keep up with your public updates.

If you don’t know about the public updates, click on the link to learn more.

Whenever someone posts something using the “Public” status, their subscribers will be able to see it.

There are directions available as to how to let folks subscribe to your Facebook Profile, or you can subscribe to others profiles.