Social Media lets you build awareness, inform audiences, engage, and sell. The audiences you reach are prospects, customers, staff, allies, investors, analysts, and the public. These audiences can influence the purchase of your products and services. Just posting on a social media network is not enough. If audiences engage with your post, respond. Measure you social media reach with tools provided by each social network platform or by third-party solutions. There are third-party solutions for posting, caching future posts, listening, and metrics.