Social historians and other scholars often publish books about particular social issues that cover the history of a social problem, causes and responses, and give an overview of the relevant policy making. Other sources, like CQ Researcher, also contain shorter article-length summaries of this history of specific social problems and policy responses.
Some authors discuss theoretical approaches and social policy analysis frameworks. Social policy: a critical and intersectional analysis (book)
Annual Reviews Online provides research literature in various disciplines within the Biomedical, Physical, and Social Sciences.
Very Short Introductions (VSI) offers concise introductions to a diverse range of subjects, written by experts in the field who combine facts, analysis, new ideas, and enthusiasm to make challenging topics highly readable.
Search for more social work related associations, welfare, special interest and advocacy organizations with Gale Directory Library. For example, search "Social Work" or "Homeless" in the Encyclopedia of Associations: National Organizations of the U.S. and filter by State and Subject Category.
Gale Directory Library provides full-text, searchable access to Encyclopedia of Associations: International Organizations and Encyclopedia of Associations: National Organizations of the US. Users can also sort and export data from the directories.