Successful investors always stress the importance of conducting thorough
research on any company that you want to invest in. The Web offers countless
resources for such research.
Also, get business and finance information on Twitter @business_bits.
Ease of use makes this site a great resource for conducting company research. Yahoo! Provides easy access to a great deal of information as you are checking quotes or portfolios, including news reports, a company profile, analyst upgrades, insider trading information and downgrades and SEC filings.
This site is also an excellent resource for conducting company research, providing a wide range of information in an easy to access format.
This site refers to itself as "the ultimate source of company information." It provides comprehensive and well-organized information regarding companies, along with links to selected stories from other publications that provide useful background on the applicable company. Its Stockscreener feature allows you to search for stocks that meet certain criteria, such as P/E, growth rate, size, margins, etc.
Edgar is the electronic filing system used by companies to file mandatory disclosures with the SEC. This excellent site provides free access to the filings for all public companies in an easy to use format. You can also create your own "watchlist" of companies and the site will email you with filing updates.
This site offers free access to each edition of this well-known magazine from 1996. This is a very useful resource in researching companies.
This blog is excellent for those who love to read good business books.
The place to go if technical analysis is your thing.