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. 
In 2006, the most active sectors for affiliate marketing were the adult gambling, retail industries and file-sharing services.:149–150 The three sectors expected to experience the greatest growth are the mobile phone, finance, and travel sectors. Soon after these sectors came the entertainment (particularly gaming) and Internet-related services (particularly broadband) sectors. Also several of the affiliate solution providers expect to see increased interest from business-to-business marketers and advertisers in using affiliate marketing as part of their mix.:149–150
I do this because I want to build a solid reputation and a loyal readership of people who trust me. I’d rather make less money and still have a reader than make lots of money and never see the reader again. For me, this comes not only from my ethics but my belief that in the long term building a good profile and reputation leads to other opportunities for profit.
6. IZEA – IZEA works in addition to a blog or on its own. You get paid to blog, tweet, take photos and take videos. The pay is mostly based on your following, so if you want to make money with your tweets, you’ll need to grow you Twitter following. Likewise, if you want to make money with blogs, you’ll need substantial blog traffic (more on blogging below).
Français: gagner de l’argent (pour les enfants et les ados), Español: ganar dinero siendo niño, Português: Ganhar Dinheiro (para Crianças), Italiano: Guadagnare dei Soldi (per Ragazzini), Deutsch: Als Kind Geld verdienen, Русский: детям заработать деньги, Nederlands: Als kind geld verdienen, 中文: 赚取零花钱（针对小朋友）, Čeština: Jak si vydělat peníze (pro děti), العربية: كسب الأطفال للأموال, ไทย: สร้างรายได้สำหรับเด็ก, Tiếng Việt: Kiếm tiền (dành cho trẻ em), Bahasa Indonesia: Menghasilkan Uang (untuk Remaja)
Grow plants, herbs, or vegetables to sell if you have a green thumb. If your parents let you plant your own garden in the backyard, opt for easy-to-grow vegetables like lettuce, tomatoes, or cucumbers. If you will be growing your plants inside in pots, choose ones that don’t require a lot of sunlight or space. Pick your vegetables when they’re ripe and sell them in bags or plastic containers.
Amazon has spent years perfecting the art of online selling and you’ll learn a lot about online marketing by observing how they do it. They constantly test different ways of promoting products and have evolved their site quite a lot over the years. See what widgets they use to promote related products, watch how they use reader reviews, and see the way that they describe products.
Create a writer website or blog. A website not only demonstrates your technical ability, but it also creates an online hub that allows clients to connect to you. Keep the design of your website clean and uncluttered. Include examples of your work that demonstrate the kind of writing you do. Make the samples easy to find and to read, and make it easy for visitors to figure out how to contact you. .
If you wish you had a little more money in your pocket, you’re not alone. Fortunately, you have a variety of options when it comes to making money. Doing odd jobs is a quick and easy way to earn money. Similarly, reselling items or selling items you make can earn you extra cash. As another option, earn money online by writing a blog, freelancing, or doing online surveys.
House sit if you have neighbors who go on vacation. Water their plants, take out the trash, check the mail, and keep an eye on things. They may ask you to visit 1 to 2 times a day or even spend the night at their house so it doesn’t look empty and prevents burglary. Follow all of your neighbor’s rules and instructions and always lock up the house when you leave to keep it safe.
Try flipping houses if you have experience with making home repairs. As you may know from watching popular home improvement shows, flipping homes involves buying up a lower valued property that needs work, and then fixing it up for resell. To get started, you’ll need to have financing either through a bank a partner. Then, you can buy a property that’s priced below market value. After you renovate the property, you may be able to sell it for a profit.
Clearly, there's a lot of demand on Amazon, and if any product is going to sell, it's going to sell well on Amazon. But the goal here is to source the right products that will easily sell at the world's largest online retailer. Generally, products between $10 and $50 sell very well here. Just be sure to do the right market research before jumping on this bandwagon.
21. Facebook – Facebook swap shops are great for selling things locally. It’s like CraigsList, but a little easier. You simply search for swap shops in your area and ask to join the group. Once you’re in, take a picture of the item, write a quick description with the price and post it. It doesn’t get much easier than that. You can generally expect to get about what you would get at a yard sale, maybe a little more.
Be professional. When you submit a résumé, don’t type it in ALL CAPS and please don’t avoid the caps lock like the plague. Know how to use it without looking incompetent. Write in complete sentences with proper grammar. Of course, there will be exceptions, but even with the exceptions, you must keep it professional. You’re building their view of you.