How To Choose A Niche
The likelihood that you are the only business serving your niche is low, very low. In fact, I have found some people get discouraged when they discover that "their niche" is already occupied by a host of other businesses.
Well, try not to be discouraged. Malcolm Muggeridge once said, "There is nothing such as new news...there is only old news to new people. If "your niche" is already occupied there is a way to restructure or represent your niche so that you identify "new people."
The internet is a "big place." It is the first time in human history where there is the potential to actually connect to nearly the entire population on earth in real time. Before the internet, long distance connections required extraordinary technical devices that did not allow people to control their sharing of information themselves.
As of 2012 there were over 7 billion people on earth. It is now 2015 so you know that number is even higher now and will continue to grow. There are 137 million births every year. That means that the need for your niche is growing too.
And computers are becoming cheaper all the time. In May of this year a 9$ computer was announced to be released by Next Thing Company. It is called the CHIP and it can do all the basic tasks you would expect from any other computer.
There are billions of internet searches performed each day. With the advent of wireless access (the CHIP has that capability, by the way) nearly every human being on earth will potentially have access to the internet.
In reality, no matter how crowded your niche may seem to be, there is room for you.