Freelance writer: If you have a knack for writing, you can earn great money writing for others. Not sure how to start? Contact bloggers, who are always looking for great writing. As blogs grow, they can afford to pay freelancers good money for quality articles. Websites looking to build links also hire freelancers to write guest posts to be published on blogs and websites.
Lots of good insights here. I’ve just recently gotten my own website for making online income. Also gotten a website for my fledgling voice over business. There’s a lot to learn when it comes to making passive income online, especially if you’re not financially savy, this is a very helpful blog in that regard, with all the useful tools and reference materials, it certainly removes a lot of guesswork.
Another way to generate passive income is to invest and be a silent partner in a business. This is very risky, but with risk comes the potential for high returns. For example, several years ago both Lyft and Uber were looking for private investors to invest in their companies. Today, they are worth billions - but you as an investor would only reap that benefit if they go public via an IPO, or get acquired. So, it's risky.

Venture debt ($12,240 a year): The first venture-debt fund has returned almost all my initial capital, so I decided to invest $200,000 in the second fund. I took a risk investing $150,000 in my friend's first fund, so I'm hoping there's less risk in the second fund, given he has four more years of experience on top of his 12-plus years of experience running a venture-debt portfolio for another company.

My reasons for diversifying income are simple: I want to be able to quit my day job eventually. But your reasons may be different, maybe your job isn’t that secure or your co-workers are starting to feel the pressure. It really doesn’t matter why you diversify your sources of income, what matters is that you do it. Making money won’t happen overnight with second sources of income so if you wait until it’s too late you’ll be screwed.

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.
Marin County had by far the highest per capita income during that period ($58,004); its per capita income was almost $10,000 higher than San Francisco County, which ranked second in that regard. Of the ten counties in California with the highest per capita income, all but Orange were in Northern California, and all but three are located in the San Francisco Bay Area. Of the three not located there, two are smaller counties located in the Sacramento metropolitan area. Orange County's per capita income ranks last among these ten, and its per capita income is about $5,000 more than that of the state.
In expensive cities like San Francisco and New York City, net rental yields can fall as low as 2%. This is a sign that there is a lot of liquidity buying property for property appreciation, and not so much for income generation. This is a riskier proposition than buying property based on rental income. In inexpensive cities, such as those in the Midwest, net rental yields can easily be in the range of 8% – 12%, although appreciation may be slower.

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.

Writing an e-book is very popular among bloggers, as many have noted that “it's just a bunch of blog posts put together!” You will not only have to make an investment of time and energy to create the e-book, but market it correctly. However, if marketed correctly (through blogging affiliates in your niche, for example), you could have residual sales that last a very long time.
You can select any of the above-mentioned, based on your interest, skill, and capability to generate a second income source. However, these are just to name a few, there exist multiple ways to generate a secondary income channel. You just need to identify the right one, which suits you the best. Remember there is no shortcut to success and you need to work hard to be successful and rich in the long run!
Love your articles. I think everyone is very different as far as how much passive income they need to meet their goals. I’ve read a lot of your articles and really enjoy your thoughts. I have a masters in finance and understand the math of keeping the debt but my emotions are such that I need to try to finish off paying off my last debt (mortgage) in the next two years. At 34 and only worth 525k I’m doing better than a lot of folks my age but it will be difficult for me to catch up in the passive income game without leverage. That is the main reason I recently created a website to try to bring passive income opportunities in my area to me.
For a person working for a wage, their source of income is their job, or their labor (aka their time that they sell to someone). But you can own a house, and rent it out, and when your renters pay you renter every month, the source of that income check is your rental property, or your house. It would just be called rental income. If you have money in the bank in an account that pays interest, those interest payments are another source of income. We can say the source is interest payments, or we can identify the asset that is generating rent, and say your money in the bank that is generating “rent” (aka interest) is your source of income.