If you live near a university, there are likely all sorts of research studies looking for participants. While I was an undergrad at Virginia Tech, I got paid $500 to participate in a 6-week dietary study. The study provided all my meals and paid me, but I had to eat a 5,000 calorie diet of 50% fat for 6 weeks, plus I had multiple muscle biopsies, urine/blood testing, etc.

Similar to e-commerce websites such as Amazon and OLX, a peer-to-peer (P2P) platform is a marketplace for money lending activities. You can lend money to others in a more organised and structured manner using the P2P lending platform. The P2P platforms have the recovery process in place and one should understand it before using the services of the platform. Since this is an unsecured loan where there is no face-to-face interaction, a P2P lender needs to be aware of the risks involved. Currently, the interest rate earned can be anywhere from 13 percent to 30 percent.
People need your help and they will pay you for it. Seriously. The jobs are there on Craigslist.org, your neighborhood your church and many more places. Traditional job search sites can be oversaturated with applicants but non-traditional places, as mentioned, can provide you a means for earning some extra income. You just have to be a go-getter and get hungry to find them. Probably the best place to work for odd jobs to work is on the app TaskRabbit.
This isn’t to scare you off. I simply want you to know that this guide is going to focus solely on ways to make real, sustainable extra income online. Not just a few bucks. I want to share all the mistakes I've made that got me to where I am now so that you don’t have to go through them, and can build a successful online source of income for yourself.
Once you have that problem or need nailed, the next step is to validate that idea and make sure you’ve actually got customers who will pay for it. This means building a minimum viable product, getting objective feedback from real customers, incorporating updates, testing the market for demand, and getting pricing feedback to ensure there’s enough of a margin between your costs and what consumers are willing to pay.
Acorns rounds up your everyday credit and debit transactions and automatically invests the spare change for you. It's only $1 a month and free for college students with an .edu address for up to four years from the date of registration. You'll barely notice the micro-investments of spare change, plus the Found Money feature invests money in your account when you shop with Acorns partners such as Macy's, Nordstrom, and Walmart.

Blogging is also one of the cheapest ways to make money online, aside from the time and and intellectual input that you have to invest. As you begin to make money from your blogging efforts, you can easily outsource for greater scalability. I also use Bluehost and I like the fact that it seamlessly integrates or interfaces with WordPress. You can set-up a domain or subdomain in minutes and start blogging in seconds. I love it!

While multi-level-marketing (MLM) companies sometimes get a bad rap, they can actually be a great way to earn additional income from home, as well as an excuse to connect with other people, and even a chance to earn trips and other rewards.  MLM opportunities run the gamut of interests from nails (Jamberry) to cooking tools (Pampered Chef) to scented oil warmers (Scentsy) to purses (31 Bags).


“Great list! I especially like the tutoring stuff. I’m good at Math that’s why I tutored once for my godparent’s 8th grader. I had fun with the her and her mum cooks the most delicious brownies. I don’t think I can donate a plasma or be a human guinea pig. But maybe you should add herb and vegetable planting. This job doesn’t require too many technicalities and is so far the easiest thing to do. There’s a method called square foot gardening for those who don’t have big spaces. It’s so simple to do and gardening in small boxes requires small maintenance. There is plenty of information on the web about how to do so. Once you get growing you can even sell your fresh produce to your neighbours at a cheaper price, and earn some fast money in the process . P.S. I also would want to partake in an online survey. Some people recommended Cash Crate but I’m also curious about what happened to you?
Your Idea. It’s not enough to say that you’re going to offer an exercise classes. The people considering your classes will want to know exactly what they are going to get for their money, and it will be up to you to explain it concisely and effectively. Understand that you’re basically giving a sales pitch to potential attendees. You’ll have to really narrow down your topic.
If you have a good idea for an app, and the skills to create it, then producing your own premium app can be profitable. However, with so many free apps available, it may be hard to convince people to pay. If you want to go down the premium app route, consider having a basic free version to encourage people to download the app in the first place. You can then provide the option of upgrading to a premium plan once users realize how useful the app is.
Don't sacrifice morals for a quick buck — At the outset, you'll want to do all sorts of things to make money online, but don't sacrifice your morals for a quick buck. Not only will you put people off, but you'll lose Google's trust. You also shouldn't concern yourself with things like Adsense or other ads on a blog before you have around 100,000 visitors per day. Yes, per day. 
Ebooks can be a hard path to online success too, from my personal experience but as you rightly said, it can be a great gateway vehicle to drive traffic to other monetized sites. Having said that though, getting your ebook on Amazon, Barnes & Noble, Lulu, Smaswords etc., is a great way to get noticed and make money overtime. An arresting e-book cover is a MUST! And if you are a DIY freak like me, you could do your own e-book cover for $0. I also use a graphic design software similar to Philip’s.
For non-tech people (myself included), web design can cause a lot of stress. And stress means opportunity. If you have a knack for web design or web development, you should definitely be capitalizing on it. And since it’s such a foreign concept for many, it can be a really lucrative side hustle. You can find all sorts of gigs on Upwork. Also, you need to read this article: How to Make $5,000+ a Month Building Websites Part-Time
Have a knack for a certain subject and live near a college? Consider offering up your brain power and teaching skills for some quick cash. Grade school kids need help too, and parents pay better than college students. You can take this idea to the next level and scale by tutoring online. We have an interview post dedicated to a chemistry tutor who took his skills to Tutor.com.  To be successful, you have to have a good grasp of the concepts but also be able to find a way to relate topics using real-world examples.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.
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