World :

Best:

Corporate Watch
Multinational Monitor Bi-monthly newsletter provides revealing insight into worldwide corporate activities. Free archives, including the Ten Worst Multinationals of the Year, plus an excellent links page with resources from around the world.
Left Business Observer

Rest:

International corporate environmental reporting site     Corporate environmental reports on the web
Labor Net
EcoNet

See also JNet's Globalization page

United States:

• FAIR Economic Reporting Review      Criticism of American business news coverage
• The Corporate Library Extensive site devoted to international corporate governance. The free services include news briefs. You can also do excellent company research  including not just biographies of CEOs and board members, but also their salary, perks and sometimes even a copy of their contracts.
• PR Watch   Punchy irreverent critique and expose of PR machines
• OUCH! How Money in Politcis Hurts You    Biting look at big money and big politics. Good source for tips and investigations
• Inequality.org   Delightful treasure chest of startling information on income inequalities.  Includes a  news section , a list of experts and a quote gallery ("To turn $100 in $110 is work. To turn $100 million into $110 million is inevitable" from Edgar Bronfman). Produced by a network of journalists and founded by James Lardner, a writer for US News and World Report.
  

Canada :

The best:

RabbleCa   (Disclosure: Julian Sher, JNet webmaster, is a contributing editor to this website)
Straight Goods

The rest:

Alternative Budgets
Canadian Centre for Policy Alternatives
Council of Canadians
Challenging Free Trade in the Americas
APEC Protests