TAP INTO THIS HUGE RESOURCE
Facebook, Instagram, Pinterest, LinkedIn, the list is huge and matching a brand's target market to the better social media channels is a task in itself. Each channel has a defined audience and following and tapping into this resource correctly can bring fantastic exposure. What we look for is the match. Which social channel is correct for your brand. Trying to just spam as many of the social media types as possible is not the answer. Choosing two or three and focusing on building a good following in by far best.
As with Google and Bing etc, social media also has advertising available within the accounts. If your product aligns with this method, then this could be productive. A better option is to build a good following through consistent, good quality posts and have that relationship and trust with your followers. A captive audience.
A good article here about how to work with Instagram.