Explore historical and recent journals, books and images in the arts, humanities, and social sciences, with some natural science coverage. Coverage: varies - historical up to 1-5 years from current date, contains primary sources. Full text.
Access reports by various projects of the National Bureau of Economic Research (NBER), released for discussion and comment. These papers have not been peer reviewed. The NBER's projects include Aging, Corporate Finance, Environmental and Energy Economics, Health Economics, International Trade and Investment, Political Economy, and more. Coverage: late 20th century to present. Full text.
Access scholarly journals and dissertations covering social science topics, including anthropology, addiction studies, criminology, urban studies, economics, family studies, social work, international relations, and more. Coverage: 1850 to present. Mostly full text.
RePEc (Research Papers in Economics) is a collaborative effort of hundreds of volunteers in 95 countries to enhance the dissemination of research in Economics and related sciences. Rankings of publications by number of citations, downloads, and abstract views provide some indication of influence and quality. A listing of "simple impact factors for journals" is one of many options available.
Access journals, ebooks, and research reports on environmental stresses and their impact on society. Research spans the biological sciences, business & economics, ecology, environmental sciences, law, public health, urban studies, and more. Coverage: historic and current. Full text.