Regardless if you need to earn some fast cash or we're just talking about making money in the grand scheme of things, there's an important psychology that needs to be mentioned before getting into the strategies. If you study Freud's model of the mind, you'll discover the Psychic Apparatus. It's the three-part construct in your mind that controls all of your behavior.
Have you heard of peer-to-peer lending? It’s a financial system that matches borrowers with investors that are willing to fund their loans. As an investor, you act as the bank and fund projects that have promising potential returns. Using a service like Lending Club takes the guesswork out of determining who is a potentially good fit for your money. They screen potential investments, determine your risk, and assign a percent expected return on your investment.
When you lack the luxury of time, making money on or offline can seem like an impossible task. How are you supposed to do that when you're working at a life-sucking nine-to-five job? While the stability of full-time employment might allow most to sleep well at night, it doesn't empower your creative juices to search for new income-producing strategies.