Social media sites have also grown in numbers by leaps and bounds. As per the statistics revealed on Statista, approximately 2 billion users used social networking sites and apps in 2015. And, with the increased use of mobile devices, this number is likely to cross the 2.6 billion mark by 2018.So, in this article, we discuss some of the most popular social media sites that are being explored by the world today. You can find out if your favourite social media platform is a part of this list and even learn about some really good online social platforms that you can start using today.