http://WizardofSEO.com
There are many benefits of social media and they include:
Improved social signals (which are a factor in the search ranking algorithm).
Company branding
Improved brand awareness
Word-of-mouth advertising
Increased customer loyalty and trust
Improved audience reach and influence
73% of online adults use social networking sites.
Facebook gets 1.2 billion monthly active users
Twitter gets 130 million monthly active users
So as you can tell there is lot of potential for new customers to find your business on social media websites.
