I found DeviantArt Favorites and Activity features to be very helpfull in finding artwork I like by seeing how other people who do or like art I like spend there time looking at and commenting on.
My DA main page:
My DA Activity:
http://annvole.deviantart.com/activity/ (look for the control bar with the button for "Activity")
My DA Favorites:
http://annvole.deviantart.com/favourites/ (look for "more favorites" button, usualy in the lower left)
Go to art you like, click on the artist's name to get their main page then go to their activies or favorites pages and click on other names. I also check out people who comment on pics I like.