A couple of weeks ago, I created my art portfolio through DeviantArt. I'm pretty happy with it so far to tell you the truth. I've had numerous online portfolios in the past with a variety of websites (including viewbook which was at the top of my list until the free trial ended) but DeviantArt really has outdone themselves with the great layout, the easy to use features, and the large storage allowance.
So please take a look at it if you haven't already. All of my favourite paintings are up there, as well as a small selection of my photography.