The databases, ebooks and web sites below specialize on presenting sources for understanding issues and finding pro and con arguments related to them:
Culture Wars: An Encyclopedia of Issues, Viewpoints, and Voices addresses the key defining issues of contemporary American society through the lens of political and social controversy.
Vital Speeches of the Day Search this publication for a topic in the database Academic Search Premier (click on "Search within this publication" on the upper right side of the page.) This provides the text of speeches on wide range of political topics.
ProCon.Org -"Promoting critical thinking, education, and informed citizenship by presenting controversial issues in a straightforward, nonpartisan primarily pro-con format."