Most, though not all, of those born within the last 20 years or so probably have a Facebook account. That many young, and even old, people have put parts of their lives on the social network. Many have also put their businesses up there. So why not just mix the two together even further. That's exactly what Facebook is now doing by creating a more formal and official way for employers and prospective employees to connect. Which pretty much puts it at odds with LinkedIn.