The first thing to do is figure out what you are good at and more importantly, what you enjoy doing. You may be able to type extremely fast. Maybe you have excellent negotiation skills. You may be great walking dogs and enjoy the needed exercise. Maybe you have a knack for growing gardens that homeowners in your neighbourhood covet. Tons of people are out there who do not possess the skills you have. You may have a needed skill that can generate a lucrative income in your spare time.
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.
I also noticed that in your passive income chart at the bottom that you don’t include your internet income other than sales from your book. Is there a reason for that? Do you not consider is passive because you are actively blogging all the time to create it? Or do you just not want readers to know how much money you generate from blogging activities?
Once I started blogging and connecting with other bloggers in the personal finance space, I saw how much potential was out there. And honestly, how much money some bloggers were making really shocked me. I distinctly remember one blogger telling me his website was making $30,000 per month….and this was 2009! To say this blew my mind is an understatement of epic proportions.

Find the thought leaders in your particular industry, and find how what they’re saying about the industry. Many thought leaders put out white papers, free webinars and other useful information to attract an audience- and potential future clients. The information must be useful, in order to keep the reader engaged, and it can be a great reference for you.
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.

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.