Best Companies t...Glassdoor.com, a jobs and career community where people share information and opinions about the places where they work, has just unveiled its fourth annual Employees’ Choice Awards, which lists the top 50 best places to work based on surveys collected from employees throughout 2011. Unlike many workplace-related awards, which require companies to self nominate, the Employees’ Choice Awards rely solely on the input of employees, who anonymously provide feedback through a survey. The survey goes only to employees in the U.S., but many of the companies have workers around the world. The ranking of the top companies was determined by taking cumulative average ratings from all the employees who responded to the 20-question survey between Dec. 1, 2010 and Nov. 23, 2011. The survey addressed eight workplace topics: work-life balance, career opportunities, communication, compensation and benefits, fairness and respect, employee morale, recognition and feedback, and senior leadership. Read on for a look at the 10 best workplaces.