Dr. Jekyll and Mr Hydes (recomended )

Today we look into the problems that may arise when using networking tools.  When we were discussing their pros and cons it suddenly came into my mind that I had read a novel entitled "Dr. Jekyll and Mr. Hyde" Dr.Jekyll has double personalities. It has two sides in his body: the evil and good sides. When he is doing too much evil  his side of evil is getting stronger when he controls himself and does more good and he has a better sense of judgement. The tools of internet are like Dr. Jekyll. If you have used  too much of them you will have hooked on them and they will bring a lot of harms instead of benefits. However, if you have made use of them in a wiser manner then both the teachers and students will gain benefits!