If you move your mouse over the large photo on the right of a SmugMug gallery, out pops a photo bar.

People who share their photos on SmugMug get lots of control over which options to show to visitors, so the photobar you see may have fewer goodies on it.

Fully loaded, the photo bar lets you:

PhotoRank by giving a thumbs up or thumbs down. This determines which photos on SmugMug are the most popular. Each day, popular photos are featured on SmugMug's browse page.

Get more info about the photo, such as the date it was taken.

Save the original, full-sized image to your computer.