As you try to make social media an integral part of your business plan, one thing that will be extremely important will be that you build a social media platform of your own; start working to develop a Twitter and facebook presence that will enable you to reach out to and interact with potential and current customers, and this will help you a great deal.
You will start to see more traffic coming your way as you interact with people through your own social media platforms, but another thing that will be important will be for you to get others to use their social media outlets to share your site; once you have people on your site, make sure you are building your site around the concepts of interaction and sharing, as this will naturally encourage your readers to share your site as well.
And finally, it is important for you to understand that Twitter and facebook give you a great forum for disseminating content from your site - but you should also realize that it will have a negative impact if you tweet or facebook links to your site too often. Rather than sending out links to your site all the time, wait until you have big news or an important announcement - and in between those times, continue interacting with people on facebook and Twitter, as well as on your own site, and watch as your traffic (and your profits!) continue to rise.