For example, you could create a course on or a teach a class on You can also look for other remote teaching opportunities that give you the option to teach online from the comfort of your own home. How much you can earn depends on the platform and the subject matter, but you could earn between hundreds or thousands of dollars each month.
 @Philip Taylor I was merely using medical science as an example profession. It’s quite obvious that you don’t have any professional courtesy and downplay professions in which you don’t understand. Logo design isn’t just logo design. I don’t know what the profession of a public accountant entails, or a lawyer perhaps, so I’m not going to give advice on matters that I don’t especially have knowledge in.
Coding – whether for developing apps or designing websites – is another big business online! It’s a pretty egalitarian business as well, since you can teach yourself to code in many languages and you can code from wherever you are. At its most basic, all you need is a computer (or laptop or tablet), an Internet connection for connecting with project files or far-flung colleagues, and a text editor. (The software involved can get more complicated than that, as you go along.) There are more small businesses wanting customized websites and startups trying to create that next great app every day, and coders can make a living along the way.
Writing an eBook and selling it on your blog can be a great money maker. Your eBook should be directly relevant to your blog’s content so you can sell your book to your existing audience. Creating a recipe eBook for a food blog or an eBook full of training plans to complement your fitness site are just a couple of examples that have the potential to sell.
Online business is how I’ve made a living since 2003 and what has helped me retire early.  I make over $40,000 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:

how to get traffic online fast