Sage Research Methods Online (SRMO) provides access to information about research methods compiled from a variety of Sage publications, including books/handbooks, articles, and the “Little Green Book” series, Quantitative Applications in the Social Sciences. SRMO is searchable and browsable by author, and it includes a methods map, as well as video tutorials. Results can be refined to focus on disciplines such as 'political science,' 'geography,' 'economics' or 'history.'
Great resource for learning more about what comprises a specific research method, with a view into how that method was applied within specific published journal literature.