The outlook and annual reports linked to on this page will often provide you with very good overviews of their topics. They are published by international organizations that work in these areas, and coordinate efforts (when possible).
In addition, don't forget about searching for books and scholarly articles!
When you just need data, here are two good databases to start with.
Economic Development in Africa
by
Global Monitoring Reports
by
Human Development Report
by
Human Rights Watch World Report
Least Developed Countries Report
by
State of the World's Children
by
World Development Indicators
by
World Health Report
by
World Investment Reports
by