I think it’s funny how 1500 is the amount of extra income you mention because that’s what I’m shooting for! If I can make that much more each month to supplement my regular income, I will have almost all of my school debt payed off in one year! I’m really motivated. I use Mechanical Turk with Amazon to perform menial task and get a few extra bucks. I also use Varolo which is a fairly new idea. I really think it has potential. If you don’t mind me promoting it, here it goes.

Finally, I imagine the biggest debate with my ranking is Creating Your Own Product as the #1 passive income source. If most people have never created their own product, then it’s easy to give it a thumbs down. There won’t be much complaint about Private Equity Investing being in last place because most people are not accredited investors. But given I believe that plenty of people can create their own product if they try, pushback is inevitable because a lot of people simply don’t try!
Jawaharlal Nehru, the first prime minister of India, along with the statistician Prasanta Chandra Mahalanobis, formulated and oversaw economic policy during the initial years of the country's independence. They expected favourable outcomes from their strategy, involving the rapid development of heavy industry by both public and private sectors, and based on direct and indirect state intervention, rather than the more extreme Soviet-style central command system.[124][125] The policy of concentrating simultaneously on capital- and technology-intensive heavy industry and subsidising manual, low-skill cottage industries was criticised by economist Milton Friedman, who thought it would waste capital and labour, and retard the development of small manufacturers.[126] The rate of growth of the Indian economy in the first three decades after independence was derisively referred to as the Hindu rate of growth by economists, because of the unfavourable comparison with growth rates in other Asian countries.[127][128]
Regardless, it took me around 18 months to start turning a profit online. It started with around $100 per month, then grew to $200 per month. Then it kept growing and growing until, eventually, the money I earned online surpassed what I earned in my regular, 9-5 job. That was last year, and my online income is still growing. Believe it or not, it all came from starting this simple, yet effective, blog.
"Create your own products and services," financial blogger and life coach Michael Tamez tells Bustle. "Any company you could ever work for can replace you at any time. However, your individuality can never be replaced! I encourage you to explore your creative talents and abilities more. What are you good at? How can you monetize that talent and perhaps even build a business out of it? Have you experienced something extraordinary in your life, and because of it, have tons of knowledge and wisdom to share? ... Creating your own products and services can create steady streams of residual income, which pays you continuously, even when you're not working. Essentially, you bust your ass once and get paid for the rest of your life — even when you're sitting on the beach, sipping coconut rum. Just remember this: When you invest in your creative abilities, you become irreplaceable!"
In March 1953, the Indian Parliament passed the Air Corporations Act to streamline and nationalise the then existing privately owned eight domestic airlines into Indian Airlines for domestic services and the Tata group-owned Air India for international services.[197] The International Airports Authority of India (IAAI) was constituted in 1972 while the National Airports Authority was constituted in 1986. The Bureau of Civil Aviation Security was established in 1987 following the crash of Air India Flight 182.
It was easier recouping the lost $60,000 in rental-property income than I expected. For so long, my primary mindset for passive income was rental income. Having $815,000 less mortgage debt but still generating roughly the same amount of passive income with a much larger cash balance feels great. Further, my passive-income portfolio got even more passive, which is good as a stay-at-home dad to a newborn.
Multiple Streams of Income is chock full of advice. The investing advice is also great and certaintly better than what you will find say in JBQ's ridiculous book which cost many people millions in lost dollars. I saw a review here by Mr. Donoghue. My guess is that some people will try to bury that untill mindless 1 star reviews. If you can scroll back and read it, I highly recommend that you do. It shows a system of investing that yielded huge returns even during the Clinton "bear market."

In 2012, even I wrote a 150-page eBook about severance package negotiations that still regularly sells about ~35 copies a month at $85 each (2nd edition for 2017) without any effort. In order to generate $2,975 a month or $35,700 a year in passive income as I do now, I would need to invest $892,500 in something that generates a 4% yield! To earn $10,000 a year in passive income would therefore need roughly $250,000 in capital.
Scholarships, fellowships, and grants are sourced according to the residence of the payer. Those made by entities created or domiciled in the United States are generally treated as income from sources within the United States. However, refer to Activities Outside the United States, below. Those made by entities created or domiciled in a foreign country are treated as income from foreign sources.

Portfolio income can come from multiple sources – interest/bond coupons, stock dividends, financial strategies including derivatives and capital growth.  Each offers some cash flow and some also offer potential capital gain with some risk from liquidity and volatile prices.  In this low-yield environment, many investors rely too heavily on cash flows and to pursue this are venturing further into riskier areas than they’d normally consider.