Twitter: The Good, The Bad, and The Ugly
There is around 175 million active twitter account active with at least one or more followers and each person is using twitter in different ways. Some user use Twitter to let their followers know what are they doing at that exat moment such as what they are eating or they just seen a certain movie and they give there feed back of the movie.
Then you have other user who use Twitter in a more professional view such as politics and sports which can lead the into something good or something bad. Twitter can also expand the classroom. Paul Levinson said in his book New New Media, Classroom Communication structure in a second way, making group to individual communication as easy as individual to group.