One of the features I miss from Google Reader is the ability to see ‘Recently Read’ stories.
This view is useful because I have set my folders to be Unread Only/Oldest First. If I’m using the web interface, and inadvertantly jump from one folder to another and want to go back to a story that I read, I have to go into the folder settings and flip it to All Stories/Newest. And then when I’m done, flip it back. This is a bit painful.