If you have a propensity for writing and you can slay with your prose, consider writing an ebook. While the market has certainly become saturated as of late, books that help teach people about a technical topic still sell extremely well. This is a great source of passive income but does require a large amount of effort at the outset before any money is generated.
I do a LOT of online surveys and I found a few sites that will pay instantly with anywhere from $.01 to $2 in your account. Rewarding Ways, Offer Nation, Dollar Clix My favorite one is Survey Savvy, although, at this time, they only pay by check. Another way to earn some quick cash is by writing articles for Hire Writers. You only need $10 in your account and you can get that by writing a few short articles. They pay automatically every Friday by paypal.
If you are great at typing fast and transcribing, this is for you! By signing up at Transcribe Me, you get to work on tasks where you are expected to turn audios and videos into text form. All that you need is a computer connected to the internet and your transcription skills. Tracking of your weekly work is easy and in real-time. You can request payment at anytime as long as you have a minimum balance of $20. Payments are fast and secure way through PayPal every Thursday before 9 a.m. EST.