I use Adobe's Photoshop to render JPG files, and I always turn up the output quality to the highest it can go, but by uploading them to social networking websites, they become pixelated in some areas, especially i noticed in certain hues. The quality of an uploaded photo is nowhere as perfect as it was the way I rendered and saved it as. Why is this and how can I prevent it? I thought it would be because such sites re-encrypt all incoming JPGs, but I've seen plenty of other profiles' photos that don't have my problem at all. What other settings in Photoshop (ImageReady) should I apply when saving and rendering JPG files??