Economics Research Network (ERN)
This entity, part of SSRN (Social Science Research Network), which also has the Financial Economics Network (FEN) , Legal Scholarship Network (LSN), and numerous other networks "is dedicated to increasing communication among economics scholars, practitioners, and policy makers throughout the world." Via electronic mailing lists, ERN publishes abstracts of working papers and accepted papers in many fields of economics. They also list job openings on their web site, and they offer an announcement service. Finally, their SSRN Author Pages are useful when you are searching for information on authors whose works appear in SSRN.