If you are having trouble selecting your topic for a research assignment or paper, you can get topic ideas and overviews by browsing:
The sources listed on this page can help you formulate your thesis statement.
Reference tools can provide an overview of a subject, introduce basic concepts, summarize key issues, define terms and cite factual information.
They include encyclopedias, dictionaries & thesauri, biographical compilations, and atlases.
Here are some excellent sources you can access online.