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28. Subscription – If you think of something valuable (newsletter, online magazine, etc.) that you can consistently offer on a certain basis (weekly, monthly, etc.), you may want to offer a subscription service. This could be a fee charged each time your product is sent out or on a monthly basis. Either way, this has to be something that your customers can only get by subscribing to your website.
The audiobook industry is booming, yet only 5% of books ever get made into audio format. If you’ve got a background in acting, or if people have said you’ve got a voice made for the radio, you can make extra money recording audio versions of independent and popular books. Sites like ACX connect authors with audiobook performers. So, whether you’re an author looking for more ways to sell your book, or an actor/voice actor looking to make some extra income, you can sell your services online.
Understand how a niche website works. A niche website focuses on very targeted, specific information. The content must be specific, useful and interesting to your target audience. Successful niche websites get anywhere from 1,000 to 10,000 visitors per month. You build content on a particular keyword, and you make passive income with Google Adsense or through affiliate links.
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. 
Jumping into the field is relatively simple. Most prospective transcriptionists start by taking an online transcription course that teaches them the skills necessary to perform common job duties. Companies, such as Transcribe Anywhere, offer classes that teach students the basics of general, medical, or legal transcription, and just as importantly, how they can go about finding clients for work.
Video is growing like crazy. And more and more people are looking for professional help cutting their raw footage into viral-worthy content. If you have the right software and a bit of skill, you can easily make money online as a video editor. Check out these article of Fstoppers on how to become an online video editor and then look for relevant jobs on Mandy.com, Creative Cow Job Search, or ProductionHub.