Should you be posting photos on Facebook, or pinning on Pinterest? Should you be creating DIY videos on YouTube or sharing case-studies on LinkedIn? I suppose the easiest way to answer that question is to find out where your target buyer personas go to find information. Find the social networks where they spend their time and that will tell you where you should spend yours.
Here's an infographic from Staples loaded with facts and statistics that can help you determine which social networks make the most sense for your business - and which ones you can skip.
Social media is becoming an important place to market your business and communicate with customers. With so many social networks out there it's just not possible to be on all of them. Find out which networks your buyer personas use and focus on building your audiences there. Strive for engagement, be human, be social. Do this and you'll receive important SEO benefits and begin to see the all important ROI for your social media marketing efforts.