Just a few days ago they released some updates that I've already implemented on my site in terms of Social Networking. You can now post individual pictures or entire albums onto your Facebook page with a status update. When you put your mouse over the image, a little "f" and Mail icon appear:
On the album title at the top, simply click the drop down and you get a similar list to post the entire album.
When you select to upload to Facebook it opens a new window where you can choose to make a status update or just Send a Message to a Friend instead.
Selecting to send an e-mail generates a modal window where you can fill out the appropriate information and send away!
All in all the new updates look great! I'm still holding out for 3 things that my events gallery is lacking. 1 - Being able to order and pay with Paypal or Google Checkout. 2 - Music while browsing. 3 - Folders, being able to organize albums based on year, location, etc....
If you'd like to give it a shot take a peak at my events gallery at http://events.brianbuckland.com and share some pictures out there and as always, please let me know what you think!