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.
Graphic designers are one of the professions that have a wide variety of ways to make money online. It all comes down to how versatile you are, how good you are at graphic design and if you are looking for some passive income or consistent money.