Social media can be an excellent business tool or a waste of time. It allows businesses to have online conversations with customers, share experiences, and see what people are saying about their products and services. When used well, social media provides an inexpensive way for businesses to market to and interact with customers, helping customers feel more connected to the business. However, social media requires careful use to avoid wasting time on nonsense. Businesses must consider how to use different social media platforms like Facebook, Twitter, LinkedIn, and Foursquare to engage customers and create marketing opportunities.