The document discusses how organizations can use incentives on social media to engage potential donors, fans, and volunteers. It provides examples of how Janet and Greta, a cooking duo, used a Facebook ad campaign offering a free recipe to gain likes for their new fan page. It also describes how a consulting group used a "Cookies for Feedback" email promotion, offering cookies in exchange for website feedback, which generated many new contacts. The document advocates using incentives that relate to the brand or cause and that add a personal touch to build relationships rather than just promote a corporation.