Company Research Guide, Rutgers University Libraries
http://www.libraries.rutgers.edu/rul/rr_gateway/research_guides/busi/company.shtml
The Rutgers librarians have created this resource to guide researchers through the process of learning about a company. Listings for the top business research sources (both print and online) are provided, and the site is organized according to the logical steps of the research process.
Hoover’s Online
http://www.hoovers.com/
Hoover’s is a well-known and respected publisher of business almanacs. Users can access a tremendous amount of free information from the website, but paid subscribers will have access to even more detailed profiles. Hoover’s OnLine covers U.S. and non-U.S. companies as well as Initial Public Offerings (IPOs).
How to Research Companies
http://www.jobweb.com/pyramid.aspx?id=1017&ekmensel=c580fa7b_147_151_1017_2
This article from Jobweb.com by Karmen N.T. Crowther covers the employer–research process in five parts, outlining what you want to learn and giving suggested resources for finding what you need to know.
Vault.com
http://www.vault.com/wps/portal/usa
Wetfeet
http://wetfeet.com/
Online services offer “insider guides to employers.” These consist of interviews with employees of the organization or the employers themselves. They are good insights into the company’s culture, interview process and career development possibilities. In addition, both Vault.com and Wetfeet.com offer job and resume boards along with career and job search advice.