Residual disability policies pay benefits according to the amount of income you have lost because of your disability. These policies pay benefits even if you can work part-time and are not totally disabled. The benefit is based on the percentage of income you earn working part-time in relation to what you used to earn when working full-time. Most companies require a loss of income of at least 20 percent compared to your pre-disability income in order to qualify for residual disability benefits.

Peer-to-Peer Lending: Earn up to 10% in returns by lending individuals, organizations and small companies who don't qualify for traditional financing through peer-to-peer lending platforms like Lending Club. You can lend $100, $1,000, or more to borrowers who meet lending platform financial standards. Like a bank, you'll earn interest on the loan - often at higher returns than banks usually get.
#4. Offer free download: Before you even sell, ask yourself, “What is the purpose of my book?”. If you are using your book as a way to establish authority in your niche then giving away your book as a free download. If you don’t want to give away your whole eBook for free, then give a few chapters to them  Again, make sure you are collecting those email addresses in exchange, so that you can follow up with a friendly email to close the sale.
I made guest posts on other blogs/college admission websites on topics like what makes a great application or how to write a great essay. I linked to my book, and get maybe 1 sale a month that I can attribute to these blogs. It’s not great for sales, but it did help my book get ranked higher on Google searches and I met and helped out some cool people, which is nice.

The second big takeaway for me, was to pick a niche you know, you find interesting AND where there is demand for your product – ie willingness to buy/pay.  A lot of people only remember the first part of this 2-part formula, and end up creating a blog on knitwear for kittens.  But it’s the overlap of passion and profit that Ferriss stressed so much.