The comments area of the ARC tool is too small! It only shows one to two comments at a time. Although you can scroll, it would be helpful if the size of the box was 2-3 times larger. Here is a comment from a student:
I think this video applet is so cool. I've never used anything like it in the digital classroom. I wish more classes used this tool. I do wish the comments area was taller. Our comments are so long (and numerous!) that it's tough to scroll through it to find a specific comment or understand context.