When you need to find information about a co-worker, do you turn to your company's intranet or LinkedIn? If you're like most people, you surf over to LinkedIn. In a recent survey, only 38 percent of 814 professionals said their companies' intranets were helpful when they needed information about their co-workers, such as what their roles and skills are. A whopping 58 percent said they could do a better job at work if they could only connect with co-workers with specific skills.