That sounds you are hearing out there for the past couple of months? The sound of people hiring!
At BountyJobs we're seeing a very broad surge across industries and across geographies. We get between 400-500 job posts a month so can track trends fairly easily. Heathcare and pharma have been 2 very reliable engines for the past few months but now amazingly IT hiring is coming back.
Believe it or not, we just had a building products company start hiring in a major way - needs plant managers for 7 manufacturing plants across the US because housing products (HOUSING MATERIALS?!?) are making a run.