All of the themes used within my content management system integrate your social media pages as much as possible. It's also setup in such a way that new social media channels that are being created all the time can be included in as they become popular.
Most themes also include "Like" buttons to allow your visitors to share your pages on their own social networks. This helps greatly in spreading the word about your website within the social media pages.
If you don't have any social media pages but you think they would be useful to you or your business, get in touch and I'll be happy to advise on how to setup these pages and make best use of them.