• Credo Reference
  Use the concept map to visualize your idea in context.
• Literati by Credo
  A new version of Credo Reference with added Research Tips, videos and tutorials.
• Gale Virtual Reference Library
  Search across a large collection of subject encyclopedias in many disciplines.
• Oxford Reference Online
  Search across hundreds of Oxford University Press encyclopedias and companions.
  
• Biography in Context
  Biographies contemporary and historical.

• CLIO
  Columbia's online catalog for books, journals, films and music.
  Search Tip:  Use Quick Limit to find films or music; re-sort titles by newest first.
• WorldCat
  Search for books and journals in major library collections around the world.
• Borrow Direct
  A borrowing service offered by the university libraries of Columbia, Brown, Cornell, Dartmouth, Pennsylvania, Princeton, Yale, Harvard and MIT. It is designed to allow students, faculty and staff to request (and receive in four days) books directly from each other's collections.

Search Tip: Click  in search results to get full-text.

How to evaluate the credibility of an online source. 

• ProQuest
  Use the suggested topics to search by subject.
  
• JSTOR
  Scholarly articles from more than 1,500 peer-reviewed journals in the humanities, sciences, and social sciences.
  
• EBSCOhost Research Databases
  Select All to search across a wide selection of scholarly databases.
  
• Google Scholar
  Useful for broad searches of scholarly literature. Click Preferences option to link directly to Columbia's collection of e-journals.
  
• Web of Science
  Provides access to the Arts & Humanities Citation Index, Social Sciences Citation Index, Science Citation Index. Click E-Link to see full text.
  
• Project Muse
  Coverage typically starts with journal issues after 2000.
  
• LexisNexis Academic
  Articles from newspapers, wire services; law reviews, case law, government documents.

Need help citing sources? See Citation Guides and Resources. For help writing your paper, contact the Writing Center.