Collaborative stories

Techniques for generating ephemeral collections of content items are described herein. For example, a social networking system may receive, from a first account, a request to generate a collection of content items, or a "collaborative story." The request may include an identifier associated with a second account that is to be associated with the collaborative story. Based on the request, the social networking system may generate the collaborative story and associate the second account therewith, designating the first account and the second account are as collaborators. In some examples, the social networking system may receive content from the first account and/or the second account and may publish the content in association with the collaborative story via the social networking system.