One thing I’ve realized is this: It’s FAR easier to work for an employer than it is to develop durable passive income streams for the average person. Why? Because working for an employer in a place that “needs” you means that it’s possible to show up and give a 50% effort. You can show up, put in your time, go home, have a beer, watch TV, and rinse and repeat all without REALLY having to put in the effort.

E-Commerce is growing on a huge scale globally, including India. It can be a source of your second income and you can earn lakhs of money on monthly basis. You don’t need a big amount of investment to start your E-commerce business. You can create your own eCommerce website without any hassles, or you can also hire a professional to create your website. Once website is setup, invest a bit in digital marketing of your website and its products/services and you are all set! E-Commerce business can provide you a source of income on regular basis without much effort. You do not need to setup a physical office or hire hundreds of employees, unless you want to be the next Flipkart. Even a small eCommerce business can fetch decent monthly earnings without much spending or hassles.
I formed a publishing company a number of years ago and have published a couple of technical books I’ve written since then. I doubled my goal for copies sold, but it’s definitely not enough income to retire on. Writing books is a tough area. You’ll definitely be proud of the accomplishment and seeing the sales happen around the world, but it’s tough to make it really profitable.
Freelancing is short term project you need to take from someone and complete it in pre-decided time. Once a project is completed you will be paid and there is no further term with the company. There are many websites where people post projects. Many people are working as freelancer full time. Websites like WorknHire or Freelancer are great places to start.
For example, you might take photos and have them available for a fee at sites such as shutterstock.com or istockphoto.com. Similarly, you can create and upload designs at sites such as zazzle.com and cafepress.com, where people can buy them imprinted on shirts, mugs, and so on. Similarly, if you write an e-book (which can be as short as 6,000 or so words), you might find that people are interested in buying it, perhaps via Amazon.com's direct publishing service.

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