Some embodiments provide tools that allow a user to share content on one device with multiple other users using different devices. To facilitate the sharing operations, the content sharing tools allow the user to (1) create a shared stream that represents a set of shared content and (2) invite one or more recipients to subscribe to the shared stream. When a recipient subscribes to the shared stream, the set of content is streamed across one or more of his or her devices. The content sharing tools of some embodiments can be used to exchange comments regarding the stream's content.