links

Jupiter Media Metrix - a comprehensive source of all information related to the Internet and it's relation to commerce and marketing. Lots of information as it relates to industries and consumer habits.
http://www.jmm.com/

eMarketer - tons of statistics related to eBusiness. Covers all areas of marketing and more.
http://www.emarketer.com/

Statistics Canada - a good source of information for Canadian-centric data. Some digging may be required to find out specific information relating to consumer habits and trends, but there is lots of raw information.
http://www.statcan.ca/start.php

Corporate Information - all the information on every company you could possibly want to know anything about. Searchable by country and industry.
http://www.corporateinformation.com/

Nielsen Net Ratings - top properties, top banners, and top advertisers give a good snapshot of the who's who in the Internet advertising scene.
http://www.nielsen-netratings.com/

Inside.com - a comprehensive portal containing useful verticals such as; American Demographics, Media Buyers Daily, Circulation Management and more.
http://www.inside.com/default.asp?entity=localhost