One of the most beautiful and exciting qualities about blogging is that you can create a blog that deals with any subject area that you are either knowledgeable or passionate about (and preferably both!). You can write about personal finance, careers, real estate, getting into business, technology, cooking, travel, personal health, or just about any topic you choose.
Thanks Howie. Also, I can’t believe you’re selling the rights to that course! It’s definitely a valuable product, although I don’t think I have the time to add it to one of my projects. Someone else would be much better equipped to take it to that next level (like Pat, as you mentioned – although I’m assuming he has too many projects on his plate at the moment).
Websites like Survey Junkie will pay you a decent chunk of change for the low-maintenance, borderline mindless task of completing surveys. Companies want to understand consumers better, and one way they do that is by compensating survey-takers. Most surveys pay between $0.50 and $1.25, and many of them take less than 5 minutes to do. You can read our full Survey Junkie review for more info.
These are just a few services, but probably the most popular that are online. There are many services that exist where you can promote your own writing abilities. On something like Elance.com for example (one of my favorites), is somebody – a website owner or publication company – will post some content that they need. This isn’t one of the most profitable ways to make money online and it is also not a residual source of income, but it is a way to work from anywhere with an internet connection.
There are numerous printing companies that will print your designs onto not just T-shirts, but also hoodies, hats, posters, cushions, bags, and phone cases, to name a few items. These businesses also offer fulfillment services. This means that you promote the merchandise on your own site and once you sell a product the printing company will not only print your design but also send the item directly to the buyer. So all you have to do is concentrate on the marketing and selling of your products, and the fulfillment company will take care of the rest.
If you’re looking for inspiration, my friend Michelle Schroeder-Gardner of the website Making Sense of Sense has become the expert on all things affiliate marketing. Michelle earns more than $100,000 per month from her blog and the bulk of her income comes from affiliate sales. Michelle has had so much success with affiliate marketing that she even has her own course called Making Sense of Affiliate Marketing.
Test websites. Remote usability testing means getting paid to navigate a website for the first time and giving feedback to the website owner. Most tests take approximately 15 minutes, and you can get paid up to $10 for each test. A test involves performing a scenario on the client’s website and recording yourself doing it. For example, you might be asked to go through the process of selecting and purchasing an item on a retailer’s website.[1]
Holly told me she started writing content in 2011. At the time, she still worked a full-time job but created content online part-time to supplement her income. Over time, she was able to double and triple her rates until she could quit her full-time job to write. These days, she makes bank as a freelance writer and teaches others to do the same via her online course, Earn More Writing.
Fiverr: Israeli-based Fivver was started in 2010 by Shal Wininger and Micha Kaufam. It's a great resource for selling just about any service online. You can offer gigs as low as $5 but also get paid much more for upgrades and add-ons. There are plenty of providers earning 6 figures on Fiverr so it's definitely a worthwhile cause for generating a healthy income. Just ensure that you provide some serious value. 
Now, this isn't about some get-rich-quick method here. If you want to get rich quick, forget about trying to do it on the internet. Sure, Facebook ads are all the craze, but without a serious understanding of the mechanics behind sales funnels and conversion optimizations, which only comes after years and years of in-the-trenches work in the internet marketing field, you're largely wasting your time trying to "get rich quick."
Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online. 
Side note: I could have easily used affiliate links for the majority of the items listed below, however I have decided to only use affiliate links for services that I actually use, or ones that I’ve seen highly recommended.  The vast majority of these links are not affiliate links.  I want this article to be a valuable resource, not a source of income for me.  If you use my affiliate links, I may earn a small commission, but I will greatly appreciate it!
In the past few years, craft marketplaces have popped up all over the Internet and offer a place where you can sell your handy work to those who appreciate handmade items. Etsy is the most popular marketplace out there. You can create your own web store on this site and list your handmade crafts, vintage items, and craft supplies. There are plenty of other sites on the web that cater to arts and crafts of all types. You can earn some extra money while enjoying your favorite hobbies.
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