If you are a private citizen with no business concern at all, then there is no great need for you to be on social media. The main reason that many private citizens are on it is because it is fun. You get to communicate with your friends and complete strangers. It is also loaded with brand new content every day, including content that your friends and family have posted. It allows people to see family photographs that were uploaded by distant relatives. It also allows you to share things between friends that will make them laugh. If however you are running a website, blog, business, or all three, then it is vitally important that you are on social media.