For marketers, using social media is must. That's because you can do free marketing on social media and even when you do paid advertising, the are low cost advertising platforms. The best thing about social media marketing is any one can becoming a social media marketing expert. You don't need high level of academic qualification, you do not even need prior experience. You can easily learn through trial and error. The most important thing to consider is to understand how the social sites actually functions. You also need content creation skills.