The document provides information about source of income discrimination in housing and resources for addressing it. It defines source of income discrimination as the refusal to rent to someone based on their use of housing vouchers, SSI, or other legal sources of income to pay rent. It advises readers who believe they have experienced such discrimination to document interactions, identify the problem, know local housing laws, and seek help by contacting landlords, fair housing organizations, or filing complaints with local agencies. Resources are provided for learning more about source of income protections and addressing discrimination.