I don't log in to (or use) Twitter much anymore, so when the new design dropped I thought I'd have a look. For the most part I like it, but was confused when I saw 'bookmarks' in the left-side nav.
I used to 'star' a lot of things in Twitter and used that as a bookmark. Since they switched to 'hearts' I stopped using it that way. The social contract of me now "un-liking" a tweet because I read the link it contained or replied to it felt, well wrong.
According to Techcrunch this feature has been around for a year now. Anyone else use it?