Wouldn't it be better to have the latest updates delivered directly to you, rather than browsing through the galleries? RSS is used by sites from all over the internet to notify when new content is added.
How does it work?
You'll notice the orange RSS icon, or a link called "RSS Feed for this Album" under most albums. Whenever an update is made to the album or one of its sub-albums, the page rendered by pushing the link will change to reflect the updates. "RSS Clients" periodically sample the link and notify the user whenever an update took place.
How can I use RSS?
RSS can be used in various ways. The common ones are:
How can I get an RSS client?
Most of them are free - Google search...