Social Media...Why???

Among the various subjects that I could choose in my Post Graduate Diploma, I decided to attend one class in Social Media Marketing. Nowadays millions of people use at least one social network for personal use to keep contacts with people but it has become deeply important for business and companies. Since I would like to work in the marketing department it is very important that I keep myself updated with the last trends and I deeply think that social media revolutioned the way to do business these days. I hope I could give my support to the company I will work for studying what for me now it is only a social network for personal purpose like Facebook and improve my conpany's marketing, brand reputation and communication!