Working Papers

EconWPA (Economics Working Papers Archive)
http://129.3.20.41/wpawelcome.html
Publisher: Washington University. Economics Department

IDEAS (Internet Documents in Economics Access Service)
http://ideas.repec.org/
Publisher: Christian Zimmermann at the Department of Economics of the University of Connecticut

NBER Working Papers
http://www.nber.org/papers/
Publisher: National Bureau of Economic Research (NBER)

S-WoBA: Scandinavian Working Papers in Business Administration
http://swoba.hhs.se/
Publisher: Stockholm School of Economics Library

S-WoPEc: Scandinavian Working Papers in Economics
http://swopec.hhs.se/
Publisher: Stockholm School of Economics Library

Technical Reports and Working Papers in Business and Economics
http://www.loc.gov/rr/business/techreps/techrepshome.php
Publisher: LC Business Reference Service

WHOIS in the Field of Grey Literature
http://www.textrelease.com/textreleasehome/whois2007.html
Publisher: GreyNet