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.
Investing in rental properties: Another form of real estate investment, rental investments (i.e. becoming a landlord) could steer you down the passive income path of steady monthly rent checks that you can use to pay off a mortgage loan on the rental property. After the mortgage is paid off, those monthly checks go right into your bank account -- potentially for years to come. 
In mid-2017, I sold my San Francisco rental property for 30X annual gross rent and reinvested $500,000 of the proceeds in real estate crowdfunding. I’m leveraging technology to invest in lower valuation properties with higher net rental yields in the heartland of America. With the new tax policy starting in 2018 capping state income and property tax deductions to $10,000 and limiting interest deduction on mortgages of only $750,000 from $1,000,000, expensive coastal city real estate markets should soften at the expense of non-coastal city real estate.
One aspect you might want to add to your scoring is “inflation protection”. At one end, bonds and CDs generally pay a fixed nominal coupon that doesn’t rise with inflation. Stock dividends and Real estate rents (and underlying property value) tend to. Not reallly sure how P2P lending ranks- though I suppose the timeframes are fairly short (1 year or less?) and therefore the interest you receive takes into account the current risk free rate + a premium for your risk. Now that I think about it, P2P lending probably deserves a lower score in the activity column than bonds too (since you probably need to make new loans more often).
Indian Railways is the fourth-largest rail network in the world, with a track length of 114,500 kilometres (71,100 mi) and 7,172 stations. This government-owned-and-operated railway network carried an average of 23 million passengers a day, and over a billion tonnes of freight in 2013.[238] India has a coastline of 7,500 kilometres (4,700 mi) with 13 major ports and 60 operational non-major ports, which together handle 95% of the country's external trade by volume and 70% by value (most of the remainder handled by air).[239] Nhava Sheva, Mumbai is the largest public port, while Mundra is the largest private sea port.[240] The airport infrastructure of India includes 125 airports,[241] of which 66 airports are licensed to handle both passengers and cargo.[242]
The Indian pharmaceutical industry has grown in recent years to become a major manufacturer of health care products to the world. India produced about 8% of the global pharmaceutical supply in 2011 by value, including over 60,000 generic brands of medicines.[174] The industry grew from $6 billion in 2005 to $36.7 billion in 2016, a compound annual growth rate (CAGR) of 17.46%. It is expected to grow at a CAGR of 15.92% to reach $55 billion in 2020. India is expected to become the sixth-largest pharmaceutical market in the world by 2020.[175] It is one of the fastest-growing industrial sub-sectors and a significant contributor of India's export earnings. The state of Gujarat has become a hub for the manufacture and export of pharmaceuticals and active pharmaceutical ingredients (APIs).[176]
I have to agree. Our Duplex cost us 200k initially in 1998. Over time and completely refurbishing the property with historically appropriate sensitivity, we invested another 200k or so. We just had a realtor advise us we could ask 700k for it today. It nets us 30k annually after taxes, insurance and maintenance. We still have a loan on it which I have not taken into account, that will be paid off within 5 years if we keep it. My mental drama now is, while I am quite giddy over the prospect of earning a tidy sum of profit if I sell, what then would I do to equal the ROI and monthly income this thing generates? Rents are low, they should be 4k a month and will only go up. Tempted to keep it and not sell. And while I do have some stocks, I basically suck at them. I am much better at doing properties.
Antelope Valley Big Sur California Coast Ranges Cascade Range Central California Central Coast Central Valley Channel Islands Coachella Valley Coastal California Conejo Valley Cucamonga Valley Death Valley East Bay (SF Bay Area) East County (SD) Eastern California Emerald Triangle Gold Country Great Basin Greater San Bernardino Inland Empire Klamath Basin Lake Tahoe Greater Los Angeles Los Angeles Basin Lost Coast Mojave Desert Mountain Empire North Bay (SF) North Coast North Coast (SD) Northern California Owens Valley Oxnard Plain Peninsular Ranges Pomona Valley Sacramento Valley Salinas Valley San Fernando Valley San Francisco Bay Area San Francisco Peninsula San Gabriel Valley San Joaquin Valley Santa Clara Valley Santa Clara River Valley Santa Clarita Valley Santa Ynez Valley Shasta Cascade Sierra Nevada Silicon Valley South Bay (LA) South Bay (SD) South Bay (SF) South Coast Southern Border Region Southern California Transverse Ranges Tri-Valley Victor Valley Wine Country
As interest rates have been going down over the past 30 years, bond prices have continued to go up. With the 10-year yield (risk free rate) at roughly 2.55%, and the Fed Funds rate at 1.5% (two more 0.25% hikes are expected in 2018), it’s hard to see interest rates declining much further. That said, long term interest rates can stay low for a long time. Just look at Japanese interest rates, which are negative (inflation is higher than nominal interest rate).

6) Always Remember That Everything Is Relative. The best way to determine worthwhile passive income streams is by comparing the likely return (IRR) with the current risk-free rate of return. If I round up, the 10 year bond yield is at 3%. Any new venture should thoroughly beat 3% otherwise you are wasting your efforts since you can earn 3% doing nothing.
As for me, I started focusing on passive income last year, but have owned rentals for 5 years. $25k now outside retirement accounts in mostly real estate. Looking to invest another $500k cash into real estate to get about $65k, and then 1031 under performers next year to hopefully boost that a bit higher. Heavy in real estate, but feels lower risk than the stock market to me if you have cashflowing properties. Real estate is inflation adjusted, and built in cashflow raise when the loan pays off.
The WBG has taken the lead in developing a set of multi-donor programs to reduce transaction costs, aligning support with the country’s decentralized model, and enhancing the predictability of aid. These instruments allow for large-scale leveraging of International Development Association (IDA) support. Such approaches are used in the Enhancing Shared Prosperity through Equitable Services, the Productive Safety Nets Program 4; the Water Supply, Sanitation, and Hygiene Universal Access Program, the Sustainable Land Management Project II, and the Agricultural Growth Program II.
What I did:The first two years of work in NYC was brutal. I told myself there was no way I could work on Wall St for my entire career because I’d probably die from heart failure by age 40. Having an early death in my mind willed me to save 50%+ from the first year onward and devise a CD, real estate, and stock investment distribution system for my savings every year. I thought about starting this site for at least a year before I hired someone from Craigslist to give set me up and push me forward. Hiring someone to get started is totally worth it if you are a master procrastinator. You can now learn how to start your own site with my step-by-step guide to save yourself time and money. 

Domain names cannot be replicated. If one is taken, the only recourse would be to approach the owner to discuss a sale. While there are other variations you could choose, sometimes owning a certain domain (especially if it is attached to your business) can be worth the premium. Often, people will scout out domain names that are still available, buy them, and then sit on them in order to sell them down the road. Depending on who may want the domain down the road, you could sell it for a large markup.
India is a founding-member of General Agreement on Tariffs and Trade (GATT) and its successor, the WTO. While participating actively in its general council meetings, India has been crucial in voicing the concerns of the developing world. For instance, India has continued its opposition to the inclusion of labour, environmental issues and other non-tariff barriers to trade in WTO policies.[286]

I wanted to specifically call out one particular strategy within equity investing that bears mentioning – dividend growth investing is when you focus on stocks that not only pay a dividend but have a history of strong dividend growth. When I was first building my portfolio of individual stocks, I focused on buying companies with a history of dividends, a history of strong growth, and financials that supported a continuation of both.

I see you include rental income, e-book sales and P2P loans as part of your passive income. Do you not consider your other internet income as passive? Is that why it’s not in the chart? Or did you not include it because you would rather not reveal it at this point? (I apologize if this question was already answered – I didn’t read through all the comments, and it’s been about a week since I actually read this post via Feedly on my phone)
Has this thought ever struck you mind as what if your boss fired you overnight, what your course of action would be? I guess the answer is NOTHING! You have no monthly pay checks coming in, how are you going to put roof above your family’s head? How are you going to manage the bills payment? What would you feed to your family? An answer to all this lies in darkness…complete darkness in that situation. But I have answer to this question, because I am my own boss managing multiple things and earning from all of them at a time, losing one would not be that big deal to me.
Thirst for income is likely to continue with interest rates expected to stay low, keeping government bond yields low for longer and their valuations unattractive.  Looking past bonds, the prices of high-dividend shares are historically high, which limits the likelihood that their dividends will rise markedly from here.  Striving too high for an income target tends to push your portfolio further out on the risk spectrum.