Starting today, you can share stories with your friends in Direct.
This is a meaningful update. Stories sucked a lot of the activity out of the feed. Being able to share Stories you find – whether they are about a place, event, an interest, a celebrity, or from a friend – means that a lot more eyeballs can be pushed around the network. In other words, a Story can now "go viral" within Instagram (and, rumor has it, soon on Facebook).
Of any of the social platforms I miss Instagram the most.