Census graphs of black Americanshttp://www.thuban.com/census/index.htmlThis site has more recent (1993-94) statistics that deal specifically with black Americans. The data are formatted in tables (you need a Web browser that supports them) for easy reading.
CommerceNethttp://www.commerce.net/information/surveys CommerceNet has some great surveys of Internet demographics formatted for HTML as well as Adobe Acrobat (PDF) files.
Internet Marketing Listservhttp://www.popco.com-/hyper/internet-marketing This page serves as a resource for Internet marketing listserv members and non-members alike. You can keyword search the archives of all the posts to the list.
American Demographics magazinehttp://www.demographics.com Besides the issues of the magazine, there are studies about marketing and demographics from Dow Jones & Co.
Project 2000http://www2000.ogsm.vanderbilt.eduProject 2000 is a comprehensive marketing study geared toward the Internet by two of the leading experts in the field, Donna Hoffman and Thomas Novak. It's also a great place to go for hotlinks to related sites.
National Trade Data Bankhttp://www.stat-usa.gov/BEN/databases.htmlA must for all those who do business internationally.
Forrester Researchhttp://www.forrester.comForrester is a leading researcher on the Internet. Much of their data is available online.
CityLinkhttp://banzai.neosoft.com/citylinkAlthough the data here lack consistency of quality, this is a great resource for links to information about various cities.
STAT-USA http://www.stat-usa.gov/stat-usa.htmlThis site by the U.S. Department of Congress gives as much demographic and sociographic information as you can take.