BizDK.com provides useful information on business site including business ethics, community development, environment, franchises, government & trade, management, self-employment, women's business.
IMEX Exchange
The IMEX Exchange, Inc. is dedicated to promoting international trade on the Internet, and through international trade, cooperation and understanding between nations and people. http://www.imex.com/
Export Source
"Export Source" combines an export guide, providing information on very concrete subjects such as export preparation, international project bids.
U.S Patent and Trade Mark Office
Very much US focused but the link to US and International Legal Materials is really value added.
Serra International
A Transportation and Trade commercial site with extensive free value added, it offers a combination (mostly external) of trade leads sites.
Openair-Market Net
Markets in Cyberspace. It is an all-volunteer nonprofit educational project that aims to provide information about open air marketplaces around the world.