The Bloomberg site includes stock quotes, news, portfolio tracking, and other market information.

CNN Money
CNN Money offers news, quotes, portfolios, and links to Money and Fortune magazines.

MorningStar Stock, Mutual Fund, Hedge
The MorningStar site includes stock and bond information, charts and screening tools. Free registration or a subscription are required for some sections.

Gain access to over 4,000 newspapers, magazines, broadcasters and news services worldwide, including Business News Source and Business Magazine.

Yahoo Finance
Find historical stock quotes for companies going back to the 1960s with this handy tool from Yahoo Finance.