One of the biggest mistakes that I see with marketers today is not utilizing social media for all it's worth. Learn to increase your online real estate by promoting your social media presence and allowing visitors to share your content online.
There is really nothing better than free positive word of mouth. But you have to make it as easy as possible for people! Their are many plug-ins and extensions that allow your content to be posted directly to social media pages. Make sure that the articles on your website can be submitted to social networking pages so that your customers can share with their direct network.
This is a simple fundamental of marketing... stimulate word of mouth!