Here is what I have in mind, but I am of course willing to modify my plan to make it fit with another teacher's needs....
Step 1: In order to familiarize my students to News Activist, I will ask them to find one (or more) article they find interesting on the website and post a comment in answer to it. My challenge here is that I would like them to read articles that correspond to their future assignment : essays written by students that are about the same level as them (high intermediate) with approximately the same criteria (450 words and three main ideas). If you have already posted or plan on posting early in the fall 2016 semester such student essays, I could direct my students to your class(es).
Step 2: After I have corrected my students' midterm exams (an essay on a sociocultural issue related to their field of study), they will have to edit their copies before posting them on News Activist, and I would like them to get comments from students from outside the college. I am thus looking for a teacher who would like to match his/her class with mine so our students could interact with each other asynchronously.