“Sell your art here” sites are rampant on the Internet.  Here’s the truth.  How they make their money is by providing a service to artists who hope to sell to consumers.  It’s you, the artist, who makes them successful.  Here’s how: You, the artist, open a gallery, either for free, or, for a premium space, by paying a fee to them.  Nothing wrong with that.   Now comes the bennies for the art site:  You put a link to that gallery on your own website which is already ranked as an art site, even if it is way down in the 500k search engine rankings.  That’s a quality link in search engine speak.  And when you and all the other artists who have galleries on the site link to them, you are bucking up their ranking.   Now you, the artist, also go all around the Internet promoting yourself and your work, adding your link wherever you can.  That draws potential consumer traffic, but it also again adds link weight.  And it usually will draw other artists to investigate the site, artists who, if they sign up, perpetuate the cycle all over again.   Let’s face it.  You, the artist, are their bread and butter, usually paying them money to show your work, and providing them with free promotion and advertising, free Search Engine Ranking help by scattering their links wherever art can be sold.  You work so they rank higher, and, meanwhle, your work winds up buried with 7000 other artists, all this in exchange for a chance to sell your work.  Value-added sites like ImageKind are great boons to the artist, providing a POD (print-on-demand), matting, and framing service for interested customers, but be careful to check your print quality before selling to customers.  ImageKind produces very excellent results, but some others have lower print quality standards. Notably, however, big artists usually aren’t found in their rosters, except for the site itself selling prints of their work…which print rights they buy.  Big artists sell through one or another of the syndications, Getty images being one such operation.  

So, does it benefit you as an artist to maintain a gallery on one, two, or multitudes of these sites?  Maybe.  For search ranking.  But as a promotional venue for your displaying your work?  No.  Your personal website and blog are your best promotional venues.