Sibling Entertainment Group Holdings, Inc. announced that it has entered into a long-term relationship with The Partnership, Inc. (The Partnership of Atlanta) to provide full outsourcing of all their marketing, marketing research and advertising needs. After an exhaustive review, Sibling Group Holdings selected The Partnership to lead their market research, identity development, digital marketing, marketing planning and media advertising initiatives. The outsourcing agreement is a multi-year arrangement, and provides for a complete and expandable set of services including marketing research, brand development, advertising, digital communications and acquisition-related consulting.