Choosing a topic can be one of the hardest parts of preparing a speech. The resources listed here can help you:
CQ Researcher includes reports that offers in-depth coverage of political and social issues, such as health, international affairs, education, the environment, technology and the U.S. economy..
A reliable scholarly alternative to Wikipedia. As well as traditional encyclopedic entries, check out the 'mind-map' feature to explore related concepts within your topic.
A variety of reference materials and commentaries to help present different sides of controversial topics. Highly recommended for argumentative/persuasive research topics.
A non-partisan, non-profit organization that presents pro and con arguments for and against a variety of political and social issues.
Over 750 front pages from local newspapers around the country that are updated daily. The Newseum also has a range of other online resources that can help choosing a topic.
Check out this helpful video on choosing a topic from NCSU Libraries.