The document discusses Preferred Marketing Developers (PMDs), a community of developers focused on making social marketing easier and more effective through technological partnerships. PMDs provide customized marketing solutions built to meet clients' business goals and deliver better performance and results. PMDs help advertisers and agencies manage advertising campaigns and pages on Facebook through automation that tests and scales campaigns, identifying successful elements to optimize and expand reach. PMDs also build integrations between brands and platforms and provide insights dashboards to support decision making.