BizDK.com provides useful information on business site including business ethics, community development, environment, franchises, government & trade, management, self-employment, women's business.
TradePort
The "Foreign Trade Information System" (SICE for short from its Spanish acronym -- Sistema de Informaci??n al Comercio Exterior) is the information technology. http://www.tradeport.org/
U.S Patent and Trade Mark Office
Very much US focused but the link to US and International Legal Materials is really value added.
I-TRADE
I-TRADE, the International Trade Resource and Data Exchange system, is a commercial site providing international trade marketing and information source.
Export Source
"Export Source" combines an export guide, providing information on very concrete subjects such as export preparation, international project bids.
The Internationalist
The Internationalist claims to be the Center for International Business Information and the source for books.
National Business Incubation Association
The National Business Incubation Association provides members with the resources needed to develop and manage successful business incubators.