For those with a job and for those in the process of negotiating a salary, Glassdoor.com provides a look inside companies and provides a view in to current salary and employee satisfaction. Glassdoor was established in 2007 to provide a community built for users to anonomously share information about their respective workplaces for the benefit of the whole. Users register and provide information on their workplace and then receive access to collected information about other companies shared by other users. Read more about Glassdoor