The core of the database is the Major Newspapers collection, which includes national and leading regional papers such as The New York Times, The Wall Street Journal, USA TODAY, Chicago Tribune, Los Angeles Times, The Atlanta Journal- Constitution, Barron's, The Boston Globe, The Guardian, The Christian Science Monitor, and The Washington Post.
A great place to look for topic selection! CREDO will help you determine where your potential topic falls in scholarly conversation and how it is related to various subjects and subtopics.
Credo Reference is an online collection of many reference books covering a wide variety of subjects, with entries covering such subjects as medicine, art, technology, law and more, all aggregated and integrated in a robust search engine.
Opposing Viewpoints is a great database to check for your topic's relevance. Here you will find quick facts, reference entries, academic journals, and current news. The amount of results may point towards how much relevant information is available.