Microblogs

Mircoblogs can be very helpful or a waste of time what students. In my experience as a college student having to follow a microblog I love it. I have to follow a psychologist on Twitter and he is always posting and when I write him he always responds. So for me I gain knowledge from his posts and not only his posts but from him personally answering my questions that I ask him. But not every student or teacher who follows microblogs has the same experience that I do. Again going back yo my college classroom setting other students have had to follow psychologists and they hardly post, or retweet, and when ever they ask questions they have never gotten a respond like I have, so what are the students truly learning? I believe if the teacher is going to assign for students to follow a microblog they mst first scope out the blog and see if they are reguarly posting and somewhat engaging with the students.