If you are thinking about starting an industry job board you had better pick the right one. Take a look at the image below. Its an info-graphic based off LinkedIn data and it shows the types of industry that are GROWING vs those that are DYING. (full article) (large graphic image)
Some of these may be newer niches you can get into now and be able to build over the next few years. As a general rule the more an industry is hiring, the more likely a job board targeting that industry will succeed. The main reason being that recruiters in that industry are more willing to try newer recruiting tools.
