This is important for you to know because when you work online and use all the free
methods available, your best bet is to try and stick to the keywords used for the micro-niche and also micro-micro niche. They are also called long tailed keywords. As a tip when you are looking for a profitable niche, you should know that you will be having a hard time getting results if your niche implies a general market, but the more your keywords get targeted on the micro-niche, the more you will be seeing better and faster results.