How the Internet has changed the way people live: how they shop, how they organize holidays, do school research, social media has changed the way people communicate and interact between them. Through the use of social media people can express their ideas and thoughts, share photos and videos and comment on them. Social media has become a place that offers a great opportunity to communicate with a large number of people not only for individuals, but also for businesses. (http://www.parl.gc.ca/content/lop/researchpublications/2010-03-e.htm) Facebook was founded in 2004 and has been the most popular social networking site ever since. It offers customers the opportunity to create a personal page, add friends, send messages, share images, videos and ideas, leave comments, etc. In 2009 it had more than 300 million users. At this time, Facebook has become an essential part of people's lives. Some people believe that Facebook is “a necessity, along the lines of oxygen, water, and food.” The Facebook website has completely changed social communication. Nowadays everyone uses social media, it becomes a mainstream phenomenon. Users are spending more and more time online. All this shows how new technology has revolutionized people's lives and advertising must react quickly to these changes. Facebook is a constantly growing company that continually adds new features to its platform, and other businesses can leverage Facebook's popularity to reach their potential customers. It offers unique opportunities that didn't exist before. In addition to networking with friends, users can now also use special applications such as games, fan pages and gifts. One of the most popular gaming platforms is Zynga which has created applications such as FarmVille, Café World and...... middle of paper ......the successful YouTube campaign was Coca Cola's Happiness Truck. The message of this campaign was very simple: have a Coke and smile. It also went viral, because it brought a lot of happiness to people. (http://www.1stwebdesigner.com/design/youtube-viral-marketing/) As we can see, social media like Facebook and YouTube are having a great impact on consumers, the way they receive messages. Today it is much more difficult for marketers to control public perception of their brands. Social media has given users the opportunity to talk about products around the clock. So instead of dismissing Facebook and YouTube as something new and unknown, companies should use them as a great opportunity to make their products more interactive. Businesses can no longer rely on what has worked in the past. They should work with new technologies even if there are many questions about their efficiency.