To locate the number of employees, sales, and stock price of a company, there are several databases you can use. Mergent which is listed below will help you locate this information quickly.
The following links are to official job, benefits, and corporate history/culture sections of the company web sites. You are strongly encouraged to explore more sections of the company web sites beyond these.
Below are a list of journals that may contain information relevant to your topic. The best way to search for these journals is through Business Source Complete where they are all indexed.
Compensation & Benefits Review
Wall Street Journal
Harvard Business Review
Benefits & Compensation Digest
Report on Salary Surveys
Journal of Compensation & Benefits
Compensation & Benefits Report
US News & World Report
Academy of Management Perspectives
Academy of Management Executive