for making money there are only one secret. It's to answer to a problem. If you have an idea of business or again know a business which don't solve a specific problem.... Don't waste your time with that, it's not have a long time before to disappear. And if you are looking for a free business or not free, think about that. Business based on ads for example, they help many others business or people who want to grow up their activity. There are a problem and a solution. Do you understand know ? Microworker is a good representation of that too, so many people come with their problem and microworker give them a solution. Use this principle in any business to know if it's good or no.