
Smugmug is a site which allows you to setup a portfolio of your images and if you opt for professional account you can sell the images as downloads via a commercial license direct to buyers, you keep 85% of the sale.
The real decision on using this site is the content of your photos.
Sites like this (photoshelter and many others) are great if you want to sell prints of fine art, abstract and landscape images, or event photography. These sales areas are off topic for microstockinsider.com, but probably not off topic for many of the readers who in work different image genres. If you are interested in selling such images then you might find an operator like smugmug very interesting. I would imagine that their site has a lot of visitors who are in the market to buy a print if they see something they like.