No doubt you have guessed my niche by now: Acrosstics are what I do probably better than anyone on the Web, but feel free to prove me wrong. It is a talent that suddenly emerged, and to me by now it is the meditative activity I do much like Iron Man needed to invent something to get rid of his anxiety in one of the movies. Do you remeber the kid telling him to?
A niche is only effective if it involves your skill and talent. If you choose your niche in an area that you don't like or aren't good at, your chance of succes will be greatly diminished. Plus, doing things you love gives you energy rather than costing energy.