Knowledge and interest is the reason to blog for money

If you want to blog for money and make your income from blogging you have to pick a topic that you can blog about for years to come. If you choose a topic to blog about that you really dont have that much interest in, there is no way you would be able to blog about that topic for years. The money comes when someone really enjoys what they are doing. That is even the way to beat top blogs in your niche. If you love what you are doing the chances of success is way bigger than if you would go after a topic that you really have not interest in.