Step 5- Choose one.
Which one was easiest to come up with ideas for? Don't just choose one because the list underneath it is longer. Choose one that has great and genuine ideas. If you are torn between two, start with one and you can always do a second site down the road.
If you choose a niche because you think you will make money easier then stop right there. Like mentioned earlier, chances are it is a tough market, and if you aren't really passionate about it then posting content and becoming an authority will be difficult.
I can not stress any of this enough. I love my latest site because I focused on my biggest hobby. I have some great ideas and look forward to implementing them. You will be able to shoot out content faster, become more of an authority, enjoy it a lot more, and your creative mind will expand with ideas for ways to generate traffic and money.