That's one word to describe annotations in Modacta.
Rather than leaving a comment or just highlighting something, in Modacta in the Skim, Share, and Library Queues you can highlight and annotate the article inline.
We've included @ tagging as well so you can tag someone on your team or @team to tag everyone. They will get a notification in their dashboard and we'll also send them an email.
Just highlight some text and click on the comment box to leave your thoughts - they are visible when a user hovers over the highlighted area.