The U.S. jobless rate fell to 7%, from 7.3%, in November. And while the economy is still facing some strong headwinds, employers’ confidence seems to be on the upswing. Now, just like a Swiss watch, comes word of a new recruitment tool from social network LinkedIn, designed to track when people move jobs, where they go and what skills they have. It could be another vehicle for communicators who want to strengthen their bench.