Saatchi has launched Your Gallery, a sort of free wannabe MySpace/DeviantArt for artists. Potential problems:  1) the originality of the works. Presumably there’ll be someone along soon, to weed out any tendency towards cute baby dragons / fairies / cats or Dr. Who drawings;  2) there is no way to tag / search / rate / comment;  and  3) the only images visitors can see are 250px-wide thumbnails. However, it can lead to finding some interesting-looking work, such as the 2004 B&W images of Sebastian Lemm.