Databases are great places to look for topics. Two of the library's databases, Opposing Viewpointsand SIRS Issues Researcher, provide excellent topic lists. An example of how to browse issues in a database is below:
The website will show you a list of many arguable topics
You may browse all topics by clicking the Browse Issues link
You may search by category
Newspapers are ripe with arguable topics. Headlines can generate topics. Here's an example of converting headlines to topics from the New York Times home page. Students can create their own New York Times accounts through the Mayfield Library.
ProCon.org is a great website to help you find a topic, get background information and to examine the existing argument.