BioDox
http://www.biodox.com

Business and Technology Information Service (Ireland)
http://www.btis.ie/

CISTI Document Delivery (Canadian Institute for Scientific and Technical Information)
http://cisti-icist.nrc-cnrc.gc.ca/docdel/docdel_e.shtml

Cal Info
http://members.aol.com/calinfola/retrieve.htm

E.B. Harris & Associates
http://www.ebharrisassoc.com/

ESTIS Document Delivery Service (University of Minnesota)
http://www.lib.umn.edu/estis/

Linda Hall Library Document Services
http://www.lindahall.org/docserv

MIT Document and Literature Search Services
http://libraries.mit.edu/docs/

NYPL Express (New York Public Library)
http://www.nypl.org/express

Purdue Technical Information Service
http://www.purdue.edu/tis

Rapid Services (University of South Wales, Australia)
http://www.library.unsw.edu.au/rapid.html

Research Associates
http://www.researchassociates.com/Default.htm

Rice University Library
http://riceinfo.rice.edu/Fondren/RICE/

STAC Information Services Guide (State University System of Florida)
http://www.state.fl.us/stac/

University of Illinois (Chicago)
http://www.uic.edu/depts/lib/libmail/infoquic.shtml

Wisconsin TechSearch
http://www.wisc.edu/wendt/wts/index.html