The craziest part of this was I’d wake up in the morning and there would be more money in my bank account, from people who had bought my book overnight. When you think about it, an online store that sells something that’s digital is something that’s open 24 hours a day, 7 days a week, 365 days a year. Using tools, software and systems, you can automate the delivery process so you literally don’t have to do anything to serve that audience. That’s super powerful.
One of the things I'm surprised your article doesn't mention is the tax advantages of this type of investment. The depreciation and rehab costs (purchasing distressed properties) can be huge deductions to ones income taxes, which none of the others have. Then, along with the appreciation of real estate, this passive income investment outperforms the notion of maxing out my 401k as well.
How to Monetize: Affiliate marketing works well when you discuss products on your blog. For our fish tank blog, we would link to all the things you need to buy for an aquarium and then when people click on that link and buy that item (and other items they purchase with it with some exceptions) you get a percentage of the purchase. Amazon Associates is the best-known affiliate marketing program, but there are others like Impact Radius, ShareASale, Commission Junction, ClickBank and Rakuten too.

Engineering is the largest sub-sector of India's industrial sector, by GDP, and the third-largest by exports.[177] It includes transport equipment, machine tools, capital goods, transformers, switchgears, furnaces, and cast and forged parts for turbines, automobiles and railways. The industry employs about four million workers. On a value-added basis, India's engineering subsector exported $67 billion worth of engineering goods in the 2013–14 fiscal year, and served part of the domestic demand for engineering goods.[178]
According to financial planners and advisors, retired people could invest in Debt accrual funds for higher post-tax income. These funds are more useful to those retired people who are in the higher income tax bracket (20% and 30%). For those who are in the 10% tax bracket, and also those who do not have to pay any taxes, bank fixed deposits are equally good, they say.

India has the largest diaspora around the world, an estimated 16 million people,[363] many of whom work overseas and remit funds back to their families. The Middle East region is the largest source of employment of expat Indians. The crude oil production and infrastructure industry of Saudi Arabia employs over 2 million expat Indians. Cities such as Dubai and Abu Dhabi in United Arab Emirates have employed another 2 million Indians during the construction boom in recent decades.[364] In 2009–10, remittances from Indian migrants overseas stood at ₹2,500 billion (US$35 billion), the highest in the world, but their share in FDI remained low at around 1%.[365]

I invest about 5% of my pre tax income in 401k that my employer matches. Have close to 70k in cash in checking. Also,I liquidated around 40k in my 401k and not sure where to invest that in (bonds vs stocks) because of stocks trading at record high. Have a rental property that is paying itself now and I will pay off the mortgage completely in 5 years. My immediate concern is the cash in checking acct that’s not doing much. Thanks for your reply and appreciate your work. I am learning a lot

When I purchase an existing online business, I look for cash flow over the past year and where the money comes from. I want the sources to be more passive so that it does not take a lot of my time. Also, typically I will make an offer that is 18 – 24 months of profit so that I know that I will get my money back within the next two years. I hope that helps!
Stock dividends: Some stocks, especially stocks from big corporate standouts, pay dividends to shareholders based on the number of shares they own, and the percentage of the stock price on the dividend date. For example, if a company pays out 3% on a stock that's trading at $100 per share, you'll earn $3 for every share of that stock you own. Add it up and that can be good take-home pay as a passive investment.
The surveys from home, you added a link for “everything we needed to know” it sent me to a site where I had to pay them $35 or $45 to get started. It doesn’t say anything about how, until you pay them. You sent us too the site BUT, have you checked it? Is it safe? Will they take my $, & I get nothing? If you say its OK, then fine, but usually these things are bad news. I fell into one when I was young. Proof reading at home. They sent you a book on how to do it, & then a “LIST” of all the company’s that hired at home proof readers. Well, they sent me the book, which was fine. But, the list they sent me had nothing but company’s that only hired people with long time prior experience proof reading. So, it was useless to me. ;(
India has one of the fastest growing service sectors in the world with an annual growth rate above 9% since 2001, which contributed to 57% of GDP in 2012–13.[42] India has become a major exporter of IT services, Business Process Outsourcing (BPO) services, and software services with $154 billion revenue in FY 2017.[43][42] This is the fastest-growing part of the economy.[44] The IT industry continues to be the largest private-sector employer in India.[45][46] India is the third-largest start-up hub in the world with over 3,100 technology start-ups in 2014–15.[47] The agricultural sector is the largest employer in India's economy but contributes to a declining share of its GDP (17% in 2013–14). India ranks second worldwide in farm output.[48] The industry (manufacturing) sector has held a steady share of its economic contribution (26% of GDP in 2013–14).[49] The Indian automobile industry is one of the largest in the world with an annual production of 21.48 million vehicles (mostly two and three-wheelers) in 2013–14.[50] India had $600 billion worth of retail market in 2015 and one of world's fastest growing e-commerce markets.[51][52]
I've got a $185,000 CD generating 3% interest coming due. Although the return is low, it's guaranteed. The CD gave me the confidence to invest more aggressively in risk over the years. My online interest income has come down since I aggressively deployed some capital at the beginning of the year and again during the February market correction. You'll see these figures in my quarterly investment-income update.
Just like any industry, there is good and not so good. The good part of passive income is that it can lead to multiple streams of revenue. Entrepreneurs understand more income sources means a more stable business and more room to grow. Implementing passive income strategies creates exciting possibilities and opportunities. Passive income sources allow me to have freedom and financial security in my life and business. I can spend my time traveling or writing, knowing that I'm stilling making income.
When I started building my architecture-related business in 2008, I made my first dollar through advertising. I’d spent a lot of time and money building the site and getting traffic. Then one day I threw an ad on the site one day, and I made $1.18. Sure, I could find that much under my couch cushions—but that’s not the point! The point is that I was able to build something online, put an ad up, and make money without having to do anything. I learned it was possible, and it motivated me to move forward.
I’ve read stories about people setting up ad campaigns and making thousands of dollars within a matter of hours. What’s the catch?  The big one is risk.  You’re spending money to make money, so if you turn out to set up a bad ad campaign that doesn’t convert well, you can easily lose lots of money.  That’s been the primary reason I’ve stayed away from this method of making money online.  I’m not going to bother giving advice here, because as I said, this isn’t something I’ve done.  If you’re interested, you can probably find a lot of good information via Google, but watch out – as with any other internet marketing topic, most everyone is going to try to sell you something.

There are a ton of ways to diversify your investments, some of which can send real income your way. By opening a brokerage account and investing in ETFs or mutual funds, you can earn real returns you can use to supplement your income. Of course, the flip side can also happen – as in, you can lose money. So, make sure you understand the risks before you dive in.