Stock Market Quotes:

 1. Stock Market Page

 2. E*TRADE

 3.  Nasdaq 

 4.  NY Stock Exchange   

 5.  American Stock Exchange 

 6. Stock Market Game 

Company Information:

1.  http://beta.elucidate.com/zoom.html

Currently limited to information on the enterprise software industry, and a bit dated. 

2.  http://www.inquiry.com/search/Search.asp

Focused on software development--you can search the databases of many software trade publications from this site) 

3.  http://www.hoovers.com/

Hoover's Online! Lots of company info, including stock quotes and company news, SEC filings, IPO information. 

4.  http://www.prnewswire.com/

PR Newswire (press releases about company developments) .

  Playing the Market