A thing that needs to be ironed out for your online business is your billing service. While there are businesses that may bill their clients directly after a contract has been agreed upon and signed and these bills are paid for through checks that are deposited into the service provider's bank account, there are some clients who require a certain online billing system for them to pay for the services they have contracted. You may need to register with a billing system like PayPal for your online business to make billing and payment easier and less of a hassle to you and your clients.
Using a food delivery service can’t necessarily earn you money, but it can help you save you money if you constantly find yourself throwing out half the food you buy. Food delivery services send a box of food every week with new, sometimes unique vegetables, meat, fruit, and so on. If you don’t have time to shop and want simple meal-prep that leads to a good meal, a food subscription service may be perfect for you.
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
If can’t afford to buy a website there are just as many opportunities in buying and selling domain names. The people who do this are referred to as domain flippers. The principle is the same – you buy a domain for as little as $10 and flip it for several times that amount. Do companies still pay thousands of dollars for a domain name you own but they want? Absolutely.
But don’t make the mistake of thinking this will be a passive source of income—you’re on call whenever you have a guest and you’ll always need to keep the place clean for incoming visitors. On top of just renting on Airbnb, consider offering your guests paid add-ons, like Lauren Gheysens’, Royal Day Out in London, England—where she gives visitors a local’s only tour of the city, complete with bespoke 18th century costumes.
Not only will this multiply the money you’re bringing in in a serious way, but it protects you against any sudden changes in the market or in your business. Remember that old saying about putting all your eggs in one basket? A few hours a week committed to just one or two of the following opportunities will put you in a much stronger position to be financially safe and independent.
Then once you’ve got your domain name and hosting sorted out, it’s time to pick a CMS, or Content Management System, that will let you update pages, build your blog and integrate with all the other services you need. It’s hard to go wrong with WordPress—the CMS powering close to a quarter of the internet. Keep in mind that eventually as you start growing traffic to your blog, you’ll be wise to invest in a managed WordPress hosting plan from a company with great service like Kinsta , where all of the settings are custom-tailored and optimized to work particularly well with WordPress-powered websites.
The other option is to offer white label SEO services to web design agencies. What this means is they handle the web development side of things, and you take care of the search engine optimization work. The perk of this approach is you never have to deal with their clients. Most SEO consultants start here because all the client-finding work is already done. That leaves them to do what they’re best at – ranking sites in Google.
Take surveys. You can earn $50 to $100 per month in cash and products by taking online surveys. Find survey sites by searching for “paid survey sites” online. Sign up for several survey sites to increase your chances of being selected for higher-paying surveys. Register with an email address, and check your email often so you can respond quickly to survey offers.
Even in the age of automation, some jobs still require a human touch. Companies often outsource those jobs via services like Amazon’s Mechanical Turk. These jobs can be tedious — tagging images, transcribing videos, classifying receipts — and can take anywhere from a few minutes to a few hours. Pay depends on the task, and the person requesting the work gets to approve the finished product before paying you. That can leave room for scams, so do your research and join a community like TurkNation, which can steer you away from shifty dealers. Read more about doing tasks on Mechanical Turk.