Social forums are great. Users can subscribe and get an update anytime something changes in their topic(s) of interest.

We need the same concept for uploaded Photos. Each Member can subscribe to get updates any time a new photo is updated in a specific album/page.

By having this, Members would be automatically sent updates that they can visit the website. Sometimes, a little prodding is good to help with adoption AND this is when something NEW has been added. Going to a site and viewing all of the albums looking for new photos can be a waste of time.