Hopefully this article has been useful and will help you get well on the way to increasing your income as an artist.
If you have already heard of the majority of these sites, there are many more out there and you may want to give some of these a try;
Coroflot is a useful site that can be used by a range of creative individuals to showcase and promote their work. It's is also great for connecting employers with artists and advertising jobs within the industry.
Not only that but Coroflot has also collected salary information from thousands of creative professionals from around the world to give you an idea of what you should be earning in your field of work.
Similar to many of the platforms shown previously, Society6 allows you to add your artwork to a range of products. What makes this site stands out is that it offers a few extra products such as Duvet Covers. Shower Curtains and Rugs. Designs also look great in the preview images of the products, which makes things a lot easier when marketing your self to others.
If you're a dab hand at photography you may want to give iStockPhoto a try. The site gives you the opportunity to provide stock photos and earn a 15% royalty from every download. If you make iStock the only place you upload your images you can also become an exclusive contributor and earn 45% (not bad eh!) instead.
If iStock isn't for you there are many other alternatives out there such as;
Alamy: with a standard royalty of 50%, Fotolia: 20-63% royalty dependant on the popularity of your portfolio, DreamsTime: up to 60% royalty and Shutterstock to name just a few.
This site provides a focus on Fine Art, Illustration & Photography on Framed and Canvas prints. TheUntappedSource is a simple & easy to use site that helps you reach a global audience. Membership is free but for around $30 a year you can get a premium membership which offers a bunch of extra benefits and features.
Similar to Zazzle/RedBubble etc Cafepress gives users the ability to sell their products on a wide variety of products. The site is simple, easy to use and another way to connect your artwork to its audience.
Skreened is another popular site that focuses mainly on high quality custom apparel. Users can set their own commission rates on a variety of ethically sourced/sweatshop free products.
The site also sets aside a portion of their profits for various charities and focuses on having as little impact on the environment as possible.
Both of these are very well known and give hobbyists and craft artists a marketplace to sell their items to large audiences. They are great tools for selling handmade products or you could also use them combined with one of the websites mentioned previously to increase sales.