Publish your photos as a photo feed. Suitable for iPhoto, Google Reader, and RSS readers.
A demonstration photo feed is available on my personal web site at http://theworklife.com/graham-miln/photos/
photo:// scheme to create an iPhoto ready link. Using the link below on a Mac will launch iPhoto and ask the user to subscribe to the feed within the photo browsing application: photo://theworklife.com/graham-miln/photos/