There are many web sites to offer art for sale or just to show and share.

I am a member on the web site http://www.redbubble.com/

There are groups, communities with hosts and the groups gel around a theme, style or genre.

One of those I belong to is the, Impressionist Photography Group, dedicated to images made in camera.

Have a look http://www.redbubble.com/groups/impressionist-photography