Pro and Con
- Gale Virtual Reference Library Hint: search your keyword with [Publication Title] History in Dispute or Science in Dispute OR Hint: search your keyword and limit result list by Document Type: Viewpoint essay
- Issues & Controversies
- Issues & Controversies in American History
- Opposing Viewpoints in Context
- New York Times 1851-2008 (ProQuest Historical Newspapers) Graphical interface and full-text coverage back to the first issue in 1851 (Click here for Traditional Interface)
- New York Times 1980-current (ProQuest) Traditional interface and full-text coverage (FT coverage of NYT Magazine and Book Review begins 1997)
New York Times Hint: For opinions, do an advanced search and limit results to Editorials - Newspaper Source Plus
- Sirs Knowledge Source