Jobs website: http://walmartstores.com/careers/
8. Facebook. The company declined to talk about employment opportunities, but it lists hundreds of openings on its website. Facebook is looking for recruiters, salespeople, data analysts, engineers, business associates, and more. Palo Alto, Calif., the company's headquarters, boasts most of the openings, but others are scattered throughout the country and the globe. Facebook is known for its perks, including three free meals a day for employees who work at headquarters.
Jobs website: http://www.facebook.com/careers/
Twitter: @FacebookCareers exists, but isn't yet used
9. Medifast. This maker of diet foods has nearly 150 openings nationwide and will likely have even more in the coming months, says Medifast recruiter Zach Wilt. Twenty of those positions are at headquarters in Owings Mills, Md., and others are at weight-loss control centers in Virginia, Maryland, Washington, D.C., Florida, and Texas. Medifast is looking for registered dieticians and weight-loss counselors, as well as salespeople and managers.
To impress Medifast's hiring managers, come to the interview with a solid understanding of what the company does, without making the mistake of calling it a healthcare company, Wilt says. And look to interact with the company on its Twitter feed or Facebook page, because both are moderated by the company's recruiters.