Online Sales

I heard that recently online art sales have grown rapidly.  I'm a bit conservative person, so I have been inquisitive about the use of online for selling art and presenting art. 

But in addition to brick and mortar galleries where  you receive face-to-face reaction of viewers, the online is a good tool to share your art more rapidly and widely.  Also you can sell prints and cards more conveniently. 

So I tried one site.