This article is from the Libraries FAQ, by Anthony Wilson firstname.lastname@example.org with numerous contributions by others.
As Marilyn M. Levine puts it in "A Brief History of Information
Brokering" , http://www.asis.org/Bulletin/Feb-95/levine.html ,
information brokering is "the business of buying and selling
information as a commodity". Information brokers are independent
information professionals who may provide such services as online and
manual research, document delivery, database design, library support,
consulting, writing and publishing. See: Association of Independent
Information Professionals (AIIP) http://www.aiip.org/
There are several good articles on information brokering in the
February/March 1995 issue of the ASIS Bulletin :
If you think information brokering is for you, be sure to read:
Rugge, Sue and Alfred Glossbrenner. The Information Broker's Handbook.
McGraw/Hill, 2nd Ed. 1994.
See also, the Yahoo category on Information Brokers: