A “gig” in the online world is small work or projects you do as a freelancer using a particular online marketplace as a means to find work, book clients and get make money online. This work pays quite well ($25+/hour is quite common) is quite varied, including copywriting, painting, cleaning, software/website development, computer support, translations, putting together furniture, carpentry work and a lot else. This can be a great online side hustle for college students.
When businesses have small communications or writing jobs that they can’t fill internally, they often turn to content mills. On the content mill, a freelance content writer can pick and choose what projects they want to bid for and are paid on successful completion of a job.
Revenue sharing writers are like bloggers who only have to write articles and then gets a percentage of any revenue the writing forum makes.
Online shopping is a continually growing business that is heavily supported by product reviews. One way you can make money online is to write product reviews.
There are some very popular websites/blogs that are always looking for guest writers to write about their area of expertise. If you are a great writer, with a lot of background in a particular area, you can make money online writing for different websites while also improving traffic to your own blog.