You’ll make more money in a niche topic than you will on a general topic for two reasons. First, you’ll be speaking to enthusiasts, people who live and breath the issue you are dealing with. They will be interested in what you have to write and in what you have to sell because it fits into a topic that they already care about and because you are promoting high-quality, expert content. Marketing to them will simply be easier.
But the biggest factor that determines how much money you will make, is joining a training program that will help you success. It is very hard to expect success right away if you are a beginner and all alone. The best program that offers you the information, help, tools and support to succeed is Wealthy Affiliates. Some Wealthy Affiliate members are already making over $8000 a month after only 6 months of being a member.