SAGE Research Methods contains research methods, cases, datasets, and videos. All of these interfaces can be individually searched:
Historical researchers often use documentary, biographical, oral history, and archival methods, in addition to many of the methods commonly used across the social sciences. Historical research is often concerned with topics related to social change over time and data can take many forms, including photographs and secondary data and documents from a range of official and academic sources. Literature reviews are an important part of many historical research projects and interpreting various sources critically is a key skill historians develop. For an introduction to the range of approaches to historical research, try "Historical Research” in A-Z of Social Science Research.