Since the Great Recession of 2008, knowing what hot niches to market has become especially important to generate income. Some people may suggest that the entire marketing landscape has been turned upside down and that old, popular niches are no longer the bestsellers they once were. There is a bit of truth to this as it becomes harder to sell in a climate of economic fear; however, once you take a look at the five standard, hot niches closely, you will find that they are still selling, although in different manners.