Today, social media is essential for all businesses. It enables businesses to view, create, and share information, ideas, stories, and other forms of expression. Using social media as a marketing tool can help you grow your brand, be more present and credible in your industry, and find and retain clients.
Public Relations encompasses a lot these days. Most PR services revolve around media - writing a news release to distribute to targeted media contacts. However, PR, by definition, refers to how you relate or communicate to your public. This could and often does include social media management, community relations and events, and story writing/messaging.
You may hear someone say "organic" or "earned" media. Simply put, this is content about your company placed for free in publications or online media, on your social media pages, or other sources. This could be a media story written by a member of the media or your own social media content. The alternate, and often complementary, content is paid media, such as advertising.