Social networks are becoming more and more collaborative, and many are unveiling new features that promote interaction between users. Now, Snapchat is joining the club with a new feature called Shared Stories. The latest craze on social networks seems to be collaborative content. Instagram already lets users publish common content across two accounts. Now, it’s Snapchat’s turn to offer a similar option, but for Stories. Users can now allow their friends to add content to their own respective Story, leading to a combination of content that can help boost engagement on Snapchat. To create Shared…