If done right, Social Media can drive a great deal of traffic to your site. This traffic helps with your SEO ratings. However, you need to be very careful about what you post on social media, how often you post, what value you offer in your posts, and how well liked you are by your social media friends.
You also have to tailor each post for each social network because they all have a different crowd and require a different style of delivery. And depending on your business, some of these sites may be relevant and some may not.
Again, it is important to work with experts in determining your strategy and executing it. We call this Social Media Optimization. And it is both an art and a science that needs to be carefully applied when it comes to your business.
Be helpful, informative, well liked, well respected, interesting, polite, and playful when appropriate. This way, people are more likely to click through, like and share your posts.