General Research Tools
(for preliminary research, scanning the literature, refining the topic)

• Catalyst
• Library Article Search Tools

Further Research Tools
(finding articles in specific fields, related articles, grey literature)

• America: History and Life, Historical Abstracts (scholarship in history)
• IBSS, Sociological Abs (scholarship in sociology and social sciences)
• SSCI,  Scopus, Google Scholar (for citation tracking)
• Dissertations and Theses Global
• Proquest Congressional and Presidential Library (US government documents)
• CQ Researcher, CRS Reports, Policy Files, GAO (for reports on policies and issues)

For news and historical news sources, check News and Newspapers Guide. 

For sources on Baltimore, check Baltimore Research Guide.