Gretchen Fox is a social media expert who has trained over 100 marketers and business owners. She developed a social media assessment tool called the STARR scale. The document discusses strategies for growing a wine business using social media, including developing a social brand identity, understanding audiences, creating engaging content, implementing digital marketing and sales tactics, and developing social media policies and practices. It also promotes an online course from Gretchen's company, MTO Agency, for wine industry professionals to learn social media and digital marketing skills.