Pocket is limiting me on articles only.. (psychologically). I always wanted an app where I can save my links, for say images on the web, or videos with a description of the timestamp I have reached at. Maybe I want to keep bookmarks for later, but it's not worthy for it to be in my bookmarks bar in my browser and it's not an article (say at top 20 list to submit your startup written by a YC user).
They have an app (for android at least, not sure about iOS) with which you can share stuff to.
So from your (mobile/desktop) browser you can store anything that has a url.
I use pocket for 'read this later'. Raindrop.io seems very well suited for bookmarks so far.