grading

Hi, this is just a question seeking for suggestions. For classroom teaching receiving students' submission on an essay assignment, grading the essay with comments, and then returning the comments back to students is something very time consuming. I am thinking to ask students to post their essays as a (book page, story, blog...?) to course Drupal site, and I will use Adding Comment to write feedback so that there will be no email, download, attach, etc tasks.