This is the third in a series of well received posts on how to grow your business using LinkedIn. It focuses on: setting up your personal profile; connecting with people you know; giving and getting recommendations; setting up your LikedIn company page; and joining selected LinkedIn groups. LinkedIn, just in case you’ve been hiding under a rock for the last few years, is now by far the world’s largest professional network. It has rightly been said that if you’re in business and not on LinkedIn you may as well not exist. The fact that 499 of the Fortune 500 companies are represented by director-level employees and above just reinforces that point.