Now that the alternative workforce (freelancers, part-timers, etc.) is gaining steam, effective knowledge storage and transfer is more vital than ever. The number of hours I've watched new workers and incumbent employees spend tracking down the most basic information is insane.
It still blows my mind that a lot of the higher ups don't even THINK about optimising their onboarding system. Even if it's small changes, here and there, as time progresses.