Locate information about universities offering economics degrees at the batchelor, master, and PhD levels. Also includes information on scholarships, top economic careers, the top 100 blogs, etc.
Economics encyclopedias can give you the broad overview of a topic.
Articles are often on very specific topics; encyclopedias and books often take a more general perspective that can enhance your understanding of the specific info in articles.
Some subject encyclopedias are very scholarly. Your professors won't be impressed by WorldBook or Wikipedia; but they might be impressed by a source like the highly respected New Palgrave Dictionary of Economics.