Just some thoughts for you Samuel when you get the time to review.
Folder icon, I would suggest this is used to minimise and maximise a list, ala file explorers. Moving the menu arrow icon (which appears on hover currently) to be on the far right, this will allow unread counts to remain in a static position.
Saved items, I’d like to put these into folders as well like the sites above.
Just noticed that when highlighting text in chrome there is no change to indicate this.
Sharing options at the bottom of an item, currently if I want to share something on twitter / facebook / google+ then I need to scroll back up and right click to select my preferred option.
(FYI, under “Learn to use NewsBlur” there is a reference “This is a free service that is always getting better.”)