The National Bureau of Economic Research (NBER) is one of the leading Economics research organizations. This link goes to their working paper repository. A working paper is a type of resource used in Economics research that is essentially a final draft of a scholarly journal article. Working papers are commonly used for understanding the most current thought on a topic due to the length of the Economics publishing process. 

RePEc is the largest bibliographic database dedicated to Economics and available freely on the Internet. This site is part of a large volunteer effort to enhance the free dissemination of research in Economics. It is a working paper and open access journal repository. A working paper is a type of resource used in Economics research that is essentially a final draft of a scholarly journal article. Working papers are commonly used for understanding the most current thought on a topic due to the length of the Economics publishing process.