Ebooks are one of my favorite sources of passive income. Now, you can do this the simple way and just publish it on Amazon's KDP. Or, you can go all out and build yourself a book funnel. Book funnels are powerful, but they won't be fully passive. For example, if you do a free-plus-shipping offer for your ebook (converting it into a physical book), you'll need to create some one-time offers (i.e. extra training) and up-sells (i.e. an audiobook). But, a book funnel can be very powerful.
According to Uncle Sam, you need to be "materially involved" in an enterprise to earn active income. With passive income, it's just the opposite, as the IRS deems you to be earning passive income if you're not materially involved with a profit-making enterprise. By and large, expect income to be taxable if you are engaged in a passive income enterprise. You will need to report earnings to the IRS. 

However, when you lack the money, you need time. You'll need to invest the upfront time now in order to reap the benefits of automatic income later. It just doesn't happen overnight. So don't expect it to. However, you can do this without quitting your day job. All it takes is some sincere effort over a consistent period, and voila! But, to get there, you'll need to consistently burn the midnight oil or get up at the crack of dawn. Your choice.
Question: You mention receiving $200k of passive income a year, but your chart shows half of that coming from real estate holdings, and reading between the lines it appears that you hold mortgages against those holdings. Then you conclude that $200k/yr of passive income should be enough to live comfortably anywhere in the world. So are you subtracting your real estate expenses (taxes, insurance, mortgage payments, maintenance, remote property management company fees, etc.) when you report your passive income from those properties? Really I think it’s the net (after taxes and everything) that tells us what is left over to “spend” on living, right? When I set up my spreadsheet to retire early at age 47, I calculated the after-tax income I would need to live. Then I compared that to my income streams (estimating tax on the taxable income streams) to measure the surplus/shortfall. Also some good advice from GoCurryCracker: If you can minimize your taxes so you’re in the 15% tax bracket, you can possibly receive tax-free long term capital gains. I agree with your philosophy that time is more important than money as we age. I am not sure I agree with a philosophy that is fixated on needing such a large income, and would rather minimize taxes if it’s all the same on the happiness meter. Furthermore, having 20 plus income sources in the name of diversification adds stress and requires more management (TIME!). I think this is fine for those of us while young, as we have the energy to work hard. But as time becomes more important, the extra headache of managing, planning, and buying/selling our assets becomes a resented hindrance on par with the resentment we felt when working for an employer and fighting traffic each day to go to a job we hated. Every thing we own in actuality owns us, by virtue of its demands on our time and affections, and that includes investments. It also includes our home, and is a good reason for downsizing. As long as we have food on our table, a roof over our heads, and clothes on our bodies, what more do we need? I think we need to consider freeing ourselves from the weight of the chains of managing too many ventures. Personally, I plan on investing in no more than 5 simultaneous ventures ever, with the exception of some IRAs that I just plan to let sit for the next 20 years (and therefore no thought or anxiety required).
Lending Club (U.S. Residents Only) – I talk about Lending Club in every one of my income reports, because I still believe it’s the best source of passive income, even though it’s not my largest source.  You can get started for as little as $25, and over the past 2+ years, my interest rate has been 7% or higher, which I think is very good given the relatively low risk involved.  This is even more true given the recent market downturn. You can read about how I select my investments here.
3) Create A Plan. Mark Spitz once said, “If you fail to prepare, you’re prepared to fail.” You must create a system where you are saving X amount of money every month, investing Y amount every month, and working on Z project until completion. Things will be slow going at first, but once you save a little bit of money you will start to build momentum. Eventually you will find synergies between your work, your hobbies, and your skills which will translate into viable income streams.
You might be thinking one job makes you exhausted by the time you come home from work, how can you create second, third, fourth one and work so efficiently for them. You have to find out ways of creating multiple sources that are suitable for you and can add steady flow of income in your monthly salary basket. It could be as low as INR. 100/- per month but has to be steady.
In the early 18th century, the Mughal Empire declined, as it lost western, central and parts of south and north India to the Maratha Empire, which integrated and continued to administer those regions.[85] The decline of the Mughal Empire led to decreased agricultural productivity, which in turn negatively affected the textile industry.[86] The subcontinent's dominant economic power in the post-Mughal era was the Bengal Subah in the east., which continued to maintain thriving textile industries and relatively high real wages.[87] However, the former was devastated by the Maratha invasions of Bengal[88][89] and then British colonization in the mid-18th century.[87] After the loss at the Third Battle of Panipat, the Maratha Empire disintegrated into several confederate states, and the resulting political instability and armed conflict severely affected economic life in several parts of the country – although this was mitigated by localised prosperity in the new provincial kingdoms.[85] By the late eighteenth century, the British East India Company had entered the Indian political theatre and established its dominance over other European powers. This marked a determinative shift in India's trade, and a less-powerful impact on the rest of the economy.[90]

If you know anything well, a place, how to fix something, how to make something, how to do something, you can write a guide for it. You can sell your guide as an e-book, offer it as a download for a fee on your site or reach out to bloggers with similar content and ask if they will offer it as a paid download on their website (for a price of course).

Unfortunately, it took a while for the real lessons to sink in. I was probably 20 or 21 when I read Rich Dad, Poor Dad the first time, which means I wasn’t exactly sure who I was yet. I knew I wanted to work hard and make money, but I wasn’t sure how. This made me a prime candidate for  multi-level marketing pitches, and the dream of “getting rich quick.”

As the third-largest economy in the world in PPP terms, India has attracted foreign direct investment (FDI).[301] During the year 2011, FDI inflow into India stood at $36.5 billion, 51.1% higher than the 2010 figure of $24.15 billion. India has strengths in telecommunication, information technology and other significant areas such as auto components, chemicals, apparels, pharmaceuticals, and jewellery. Despite a surge in foreign investments, rigid FDI policies[302] were a significant hindrance. Over time, India has adopted a number of FDI reforms.[301] India has a large pool of skilled managerial and technical expertise. The size of the middle-class population stands at 300 million and represents a growing consumer market.[303]

After these tenants move out, I'm thinking of just keeping the rental empty with furniture. It sounds stupid to give up $4,200 a month, but I really hate dealing with the homeowner association, move-in/move-out rules, and maintenance issues. Given that the condo doesn't have a mortgage and I have to pay taxes on some of the rental income, I'm not giving up that much. The condo can be a place for my sister, parents, or in-laws to crash when they want to stay in SF for longer than a week or two.
I’ve been researching a path to financial independence, and the wealth of knowledge here is amazing, but at times overwhelming. I’m honestly not quite sure where to start. Whether it be paying off debt (which I’ve always heard is priority 1), or sinking money into realtyshares or CDs for growth. I’d love to generate a passive income (in a few years time) to supplement some of my day job to have time to spend with my little one during her golden childhood years, but not sure if there’s even a right order to go about it.
Mike, I don’t consider the income from FS to be passive, as I’m spending time commenting to you right now. But since 75% of my traffic comes from search, the most traffic I would probably lose is 25% for probably a year. And then my search word rankings would probably slowly fade given frequency of posting new content is one of the search algo variables.
The reverse can also be expected unless the rents rise too.  This rental increase might occur if we imagine interest rates are rising because the economic environment is improving.  At present, it is widely expected that rates will rise ever so slowly over many years.  Indeed the US has been looking for the courage to do this over recent months and they may start rising there soon.