What is it?
The ability to subscribe and unsubscribe from an author.

Where will I see it?
Two places - a user's profile page, and when you are reading a piece of content.

What will I see?
On the user's profile page, you will see a link on the left side of the page under the user's picture. The link will say "Subscribe" if you are not currently subscribed to the user, or "Unsubscribe" if you are. To subscribe or unsubscribe, click the link.

On the content pages, you will see a new link (on the left side of the page under the "ShareThis" link) to either "Subscribe to this Author" or "Unsubscribe from this Author." Click the link to subscribe or unsubscribe from the author of the article.