"Your Group Stream turns your group’s recent activity into a blog format, creating one place where you can see the most recent happenings in your group and where content is always updating. Your Group Stream will show the full content directly on the page instead of just links to other sections, as Recent Activity currently exists (FYI, due to user feedback, that module still exists on Group Dash). Thanks to Streams, you will be able to do things such as watch a video, see photos, and read the first part of blog posts all from the same page. With your Stream, you will be able to see the freshest content in your group, who added that content, and when exactly they added it. Additionally, Streams come with Filter options so that members can filter out different types of items. Looking to find only the most recent Events? — Just click on the Events icon and your Stream will be filtered so that only Events will be shown." - Gordon Bowman from Bookmarklet