Reference sources and scholarly books can provide a good overview of a topic. Look for literature review chapters and/or bibliographies that can point you to other books and articles that specifically address your research question.
A searchable collection of critical review articles capturing the current understanding of a topic, including what is well supported, what is controversial, and where further research is needed.
Original reporting and analysis on issues in the news, focusing on the economy, education, the environment, health, international affairs, social trends, and technology. Published weekly, 1991-present.
Annotated bibliographies by top scholars of the key sources on a range of topics, including political science and international relations. You can narrow your searches or browse by discipline.
