Been using Proko.com more in the past few weeks (love David Finch's comic book course) and I noticed that your feed in "My Classroom" currently shows posts and how many likes they have, but not the discussion/comments that are actually within them. I think it would be useful and more engaging for people if each post showed the number of comments in the topic and had an option to show the discussion and have the ability to comment on them without leaving the "my classroom" page.