Niching down

Creating a niche, or market, that is a deep subtopic of your general industry category in which you can share your expertise.

Example: Automobile>Chevrolet>SUV>2014. If you are in automobile niche, you're one of many. By niching down and becoming the expert on 2014 Chevrolet SUV's, you become the precise expert that owners of this make, model, and year need to contact.