Supply and demand in the jobs market
From the Indeed job listing aggregation site, one can look at trends in both supply (employers) and demand (potential employees). The demand-side is slightly tricky to interpret because it is a function of not only real employment demand, but the popularity of Indeed as a search platform. Here are some interesting facts:
Finance: Supply of jobs falls, demand increases
Financial Services and Banking job postings have decreased 39% since March 2008.
Clicks on Financial Services and Banking jobs have increased 96% since March 2008.
Construction employment falls
Healthcare bucks the trends
Tax-related employment is volatile
SimplyHired.com also has a trends section with similar patterns.
Also see my own take on apartment rental supply and demand using online listings + web scraper.