LinkedIn offers companies the ability to provide more information about their organization via their company pages. On a company page, you can include information about your products and services along with information about job opportunities.
This is a relatively new feature, relaunched back in November 2010. Several Fortune 500 companies were part of the launch of this new feature including Dell, Eastman Kodak, JetBlue and Microsoft. But company pages are not exclusive to only large businesses — Harvard Business School, Rypple, Squarespace and other well-known, successful organizations have LinkedIn company pages.
via HOW TO: Optimize Your LinkedIn Company Profile for Recruiting.