Universities, colleges and Cooperative Extensions around the country use social media to reach constituents with instructional, research and outreach messages. When Extension professionals participate on social networks, members of the public have access to news and information from valued, trusted and credible sources. And, when Extension professionals engage with them, online networks provide interactive, genuine and far-reaching communities that keep Extension professionals current and connected to issues or concerns of the general public and present opportunities for collaboration and scientific inspiration. While these opportunities are found in various social networks, this publication focuses on Facebook. It includes information on platform selection and use, maintaining a professional and personal balance, social license, accessibility, responding to criticism with professionalism, and more.