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.
Are you a professional in a field that can help answer questions for people looking for your expertise? Websites like JustAnswer and LivePerson match you up with people looking for answers to technical or professional questions. You can make money online by simply answering these questions and providing the right information to people based on their individualistic circumstances.
One of the most underrated freelancing sites ever. The site started as a place where you could get paid to do short tasks for just five bucks. Over the years, it has slowly morphed into one of the biggest gig/freelancing sites where you can now charge any amount to do all kinds of stuff for other peoples. Anything from serious stuff like copywriting, translation, voice over social media management to silly stuff like prank calls and everything in between.

Another great option is Acorns and my experience is that Acorns can make anyone an investor. It helps you start saving by rounding up your purchases on the debit or credit card of your choice. Then, every time you hit $5 in savings, Acorns invests your money in ETFs. Mighty convenient. Acorns cost $1, $2, or $3 per month depending on the plan you choose – making it a cheap option for young investors. Here’s our review of Acorns 

Keep in mind though, you don’t need a website to do sponsored content since you can also get paid if you have a lot of social media followers. My wife has a pretty big Instagram following, and she gets all kinds of sponsorships. Not only does she get paid in cash, but we get a lot of free stuff, too. We’ve received free rugs, free lights, and free carpet cleaners. She only promotes things she loves though, so this strategy works really well for her.
If you’re looking to build a new career online or test your way into launching a small business, the first ten ways we just ran through are some of the best, long-term plays for making money online. However, for a lot of people (myself included), you probably want to find other, quick online business opportunities where you can start seeing a return faster.
Cafe Press: This website allows you to create digital designs that can then be sold on the platform. You'll earn a commission for everything that sells and you'll never have to deal with logistics like printing, warehousing and customer service. If you have some graphic design skills, then this is a great potential source for your web-based income. 
22. Advertising – This is definitely the most old-school way of earning money with a blog. It’s also starting to become the least common way. You can sell advertising spots directly on your site or you can sign up with a company like Google AdSense or Media.net. Either way, you won’t see a whole lot of money from ads until your views are well into the thousands each day.
There’s plenty of work and clients to be found. If you know where to look. To start, you need to know if there is enough demand for your skill to make it worth the effort to go out looking for work. Start by searching for freelance postings on sites like Flexjobs, SolidGigs, Contena, greatcontent or one of the dozens of other skill-specific freelance job boards.
^{It’s sometimes hard to comprehend just how much people love t-shirts. And with the right niche, marketing and tools, you can create an online t-shirt business that makes you extra money online while you sleep. (Even Bloomberg and Forbes feature stories from entrepreneurs who've done just that.) Services like TeeSpring make it easier than ever to create a t-shirt drop-shipping business where they handle the sales, printing, and shipping, and you’re only responsible for design and marketing. Or you can even buy into well-established franchise businesses like Rhea Lana that sell fashionable, affordable kids clothing and get the backing of a proven organization to fuel your online sales. For more tips, check out this simple guide to launching and marketing an online clothing store by my friends over at Selz.}
I’ve been doing surveys now for about 18 months, but when i first started i, just like yourself, carried out a lot of research about all the different survey sites and slowly but surely i discovered the best ones to join and now i’m receiving quite a good monthly income from them, but after saying that i am a member of a large number of survey companies and some days i receive that many emails that sometimes i find it hard to keep up with them all, but it is worth it as it’s started to pay off. I’ll not mention all the survey companies i’m with because there’s far too many, but some of the better one’s are Global Test Market, I-Say, Toluna, Mintvine, Your Word, My Survey, Swagbucks, etc, etc. What i do is i keep trying new ones all the time and then i keep the good ones and get rid of the not so good.