One common way to do it is to create a niche site – a site generally focused on one type of product or sub-market – and populate the site with relevant articles, with affiliate links embedded.  One of my current challenges is to add $20,000 per year to my passive income portfolio by creating niche sites that focus on Amazon products.  Here are some good sources for products to sell as an affiliate:
There are many ways to get people onto your list. Lead magnets are one such resource. For example, you can build ebooks, checklists and cheat sheets. But you can also do content upgrades, such as PDF versions of an article with added resources in them, four-part video training series, and more. Think about your audience and what you can offer them to better serve them, then treat them with some respect and you'll eventually reap the rewards.

There are a variety of tasks that you may be asked to perform. This can include delivering documents, delivering food or restaurant meals, taking pictures of a building for a real estate developer, taking pictures of a menu in an upscale restaurant, or even delivering auto-parts. If you have a good working car (or even a good bicycle), time on your hands, and a lot of energy, this can be a real opportunity to make money online.
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).
Become a proofreader. All kinds of businesses hire professional proofreaders to look over their copy and content for errors before they publish. This side hustle is one that could work for nearly anyone since you can work from home provided you have a computer and an internet connection. You can find online proofreading jobs through websites like Indeed.com and FlexJobs.com
If you're looking to address some immediate financial needs, then the app economy is likely right for you. Thanks to the global sharing phenomenon, launched in part by our smartphones and ever-burgeoning global connectivity, you could easily opt for some quick active income by using well-known apps. From ride sharing to deliveries and even quick tasks, there's an app for that today, as the saying goes. 
First off, I’m a blogger so it seems wrong not to mention it, but more importantly, it’s a legitimate way to make money. It’s quite possibly the least straight-forward way on this list, but it’s very doable and it’s also quite possibly the funnest way on this list. I love blogging and I know hundreds of bloggers who feel the same. So let’s talk about making money blogging and what it really means.
Before we dive into the top 7 ways to make money online, I need to go over a few things first. Do NOT expect easy money from the internet. The internet seems to be flooded these days with “gurus” and teachers trying to teach you how to make a ton of money, by next week, using a certain system or software program. Well, get rich quick is always a scam. You cannot make money easily online. It’s a business, just like any other. These guys like to sell products that can tell you that you can make money quickly, so that they can make money selling those products. So, get rich quick is ALWAYS going to be a scam.
Build your audience on a course community: If you’re just getting started building an audience for yourself and want to leverage communities already actively looking for content you can choose to host and sell your online course on a site like Skillshare or Udemy. These are easy, cost-effective ways to build an audience and test your niche to see if there’s demand for it.
Share a sale is a super cool company that allows affiliates to get paid per click, per lead, or per sale so you can earn in multiple ways. Another great thing about Share-A-Sale is that they make it easy to be an affiliate for basically any product you genuinely like. Which makes transparency with your audience much easier. You can find out more about Share-A-Sale by clicking here.
What an epic blog post! This is going to end up as one of the best of 2011, in my opinion. Moreover, thank you so much for featuring my blog in your top “make money online” blogs. It’s a true honor and I’m humbled to be listed with so many other great blogs within what I consider one of the best posts of 2011. I’ll be featuring your post and linking back on my blog tonight…
Survey Junkie is among the most straightforward survey sites out there, which puts them at the top of this list. All you have to do is sign up to be eligible for surveys. Once you complete a survey you earn a certain amount of points that you can exchange for cash paid directly to a PayPal account or you can redeem your points for gift cards. Super simple.
Garage sale hunting – You can go garage sale hunting and this can be a lot of fun. This can actually help you make money with a hobby. I find this to be a lot of fun. One of the best things I find at garage sales are antiques and antique clothing. A lot of times people don’t realize when something is valuable. So, garage sale hunting is a great way to earn some extra money on Ebay.
There are lots of sites, but I use VIPKID. You just need a wifi connection, headphones, and a laptop with a good web camera to teach Chinese students English. They give you all the material you need to teach and an online portal, you just have to show up. The kids are super cute and fun to teach and I actually have a lot of fun doing it. Plus, I can set my own hours, work as much as I want, and take vacation whenever I want. It’s honestly great. And $20/hr goes a long way in Thailand. I make more than a lot of the English teachers I know who work in schools here. But, you have to be eligible to work in the U.S. or Canada to apply and you need a bachelor’s degree.
UPDATE – I can no longer recommend ANY multi-level marketing program to make money online. I have yet to encounter one that didn’t take advantage of people. MLM is almost always a scam, even if the products are legitimate. Stay away from MLM. Below is a video I made about MLM networks. Below that is my original text, which I now denounce, but I’m leaving it up simply for transparency. MLM is a scam.

My 10-year-old son brought home a book from our park’s free library box. It was a biology textbook – teachers edition. He said it looked interesting and hey, it was free (having no idea you could sell it). I scanned it in my Amazon seller app and realized it was worth around $150. He was so excited. We listed it for sale for $130 and it sold! Going to tell him, he just made $130!
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.

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. What’s more, you get to determine your work schedule and have the opportunity to have a career progression. 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 also get to request for your payment at anytime as long as you have a minimum balance of $20. This is released in a fast and secure way through PayPal every Thursday before 9 a.m. EST.
Creating your own food blog, will not only be fun but done well it should also be profitable. Link your site to affiliate cooking products, sell your food photos, create and sell your own physical cookbook, or launch a cooking app. Equally, you could turn your cooking blog into a membership site. You would then share all your content, including recipes, how to videos, food photographs, and much more, with only your paid up members.

There are a variety of tasks that you may be asked to perform. This can include delivering documents, delivering food or restaurant meals, taking pictures of a building for a real estate developer, taking pictures of a menu in an upscale restaurant, or even delivering auto-parts. If you have a good working car (or even a good bicycle), time on your hands, and a lot of energy, this can be a real opportunity to make money online.
Services – You can give a paid service, like life coaching, blog coaching, setting goals or financial planning. Just be sure to investigate every one of the legal implications make certain you’re not claiming to get a professional if you’re probably none. With a service such as this, you’re basically using your blog post to sell yourself. You’ll should convince those who you’re worth buying and after that be able to backup your claims if they purchase your service.
Sponsored posts work much in the same way as paid guest posts, but they are posted by big businesses instead of individual bloggers. Therefore, the scope for fees is much higher, as businesses have larger marketing budgets than humble bloggers. Having sponsored posts by large companies will also help promote your site as reputable and as a leader in its field.
Thanks for the list Eric. Many of these I have tested out and a few I still work on with regularity. There are many more places to join and get paid to write if one wants to become a full time freelance writer. A few places are Bright Hub($15 for an article), Textbroker(varies from .01 a word to .04), and The Content Authority(roughly same as textbroker). These are probably the easiest to get started with.
18. CraigsList – Some things don’t ship very well. Other things may make you feel uncomfortable to sell to someone across the country. Anytime you’re selling a large item or something you just don’t want to ship, Craigslist is a great place to go. It’s simple to list your item (again, take good pictures!). If you don’t like the idea of putting your phone number out there, the interested individual can send you a message to your inbox without even getting your email address.
Once you’ve gathered a list, put together a template outreach email (as you’ll be doing this over and over) that’s short and clear with expectations. Tell your potential interviewee who you are, what your podcast is about, and what you’re asking of them. Do a few test interviews with friends and family to make sure everything is being recorded at the quality you want and then book your first episode.
1. Choose a time of day that you can click ads and eventually manage your referrals at the same time everyday. Click all available ads everyday. Once your account balance reaches $2, transfer this money to your  rental balance and rent 3 referrals. It only costs $0.90 to rent the referrals but you will need the remainder to properly manage them and keep good referrals for more than a month. Put the autopay function on.
Alibaba is a Chinese eCommerce store that matches Chinese suppliers with buyers all over the world. Prices are extremely cheap, providing the possibility of large profits. However, with the potential profits comes more risk. As you are dealing with suppliers in China, if the quality of the product that arrives isn’t up to standard there is little that you can do about it.
Legal ways to make money online. When you want to make money on the Internet, you should have a commitment to create goals, be on the learning process and at the same time be executing projects quickly. In order to start business in Internet, you need to have the appropriate mentality. Forget about making money by simply pressing a button, or the method of making coins if by magic and the overnight.
I’ve thought about doing some of these money makin things! But seems like I just get the run around to keep doing same survey over an over or end up no where! Thinking about making my own page An advirtize for taking to store doctor appts go visit an old friend! Things like cleaning houses An cars Running errands pay bills, take car for services! Shopping , writing letters for them! I have a list of things to do to make people lives easier an earn some extra money for me!!! Thanks for ur advice I’ll just have to go over stuff see what I think will work best for me ! Thank you Tina L Taylor

Online business is how I’ve made a living since 2003 and what has helped me retire early.  I make over $20,000 a month through my blog. You can create your own blog here with my easy 15-minute step-by-step tutorial.  You can start a blog for as little as $2.95 a month (less than a cup of coffee!).  Create a blog and leverage it into affiliate sales or product endorsement deals. Consider topics like:
Now, if you don’t know people who might want your coaching services, there are a number of online tools and communities that make it incredibly easy to find clients and teach, on just about any topic area you can think of. Community driven platforms like Savvy.is, Clarity.fm, and Coach.me provide you with a network of potential clients to interact with, as well an integrated payment solution.
It’s one of the oldest and most proven ways to make money – buy low, sell high. The buy low part comes from searching garage sales, estate sales, and even thrift stores to find items that are in good condition (“gently used”) but selling well below what they would if they were brand-new. In this way, you might be able to acquire an item for $5, and later sell it for $50.
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