My twitter experience

I am thinking on what makes people use Twitter.The only difference I found  is  that  you can follow whoever you want without permission.Otherwise I can do the same things by using Facebook.For example; I can share some news, videos, links and ideas.I looked at some twits of my followings to analyze the nature of Twitter.Then I realized that they are definitely short and mostly the twits directs you somewhere to get more information, but it is not very distinctive, We can do all these things via Facebook .So I came to same conclusion that I said at the beginning  .The users of twitter is more generous to share their private or professional life.To follow some people who have good experience and knowledge on your subject definitely would be very meaningful.I think I can use twitter for  only this reason.I believe that Twitter will not be an  alternative to my  blog in Language teaching .For me Twitter can be more useful for graduate students who specialize in a particular subject or some students who like to learn more about their field, but not for high school students.