Think social media is just about networking and increasing brand awareness? Think again. A new study from Adobe found that social media sites like Facebook, Twitter and Pinterest actually drive revenue for businesses and are doing so at an increasing rate. For example, "revenue per visitor" has increased 150% on Pinterest and a whopping 300% on Twitter in the past year. Small business owners should keep these numbers in mind when deciding whether or not to spend their valuable time on social media sites.

The impact social media sites have on revenue will continue to grow and small business owners everywhere need to ask themselves if this is a trend they can afford to ignore.

Check out the full report here for more details on how social media affects your bottom line.