Favorites are the best way to discover great photos. If you know a few Flickr users that have great favorites, it is pretty uneasy to check them on a daily (or weekly at least) basis.
Flickr provides feeds for a lot of things, but none for the favorites. I don't know why Flickr doesn't provide such feeds for that yet, but I have made it available from outside thanks to the Flickr API.
Look at the feed icon in the left side just before the footer. It has been added by the greasemonkey script: http://www.flickr.com/photos/nicolas-hoizey/405755351/
Discussion (4)
I would also like to see RSS feeds for sets.
Flickr now provides RSS feeds for favorites!
I noticed this a couple of days ago - surprised it took them so long! Simple but really useful feature :)
I want a view and RSS feed of my combined contacts/friends favorites.