Knowledge of companies and industries is an important part of your career exploration and preparation for interviewing.  Go directly to the website of the company you want to learn about or go to one the sites below to learn about a wide range of employers.

• Hoover's Online: vast amounts of information. Go to browse companies A-Z, or browse by geography or industry.
• Fortune 500: all you need to know about the main players in the business world.
• Wetfeet: company profiles by industry.
• Glassdoor.com gives you an inside look at company salaries, reviews, and interview questions for thousands of companies.