Pixlr.com is a Flash based Online Image Editor you can use for free. It loads faster than Photoshop, it’s a lot(!) cheaper and does a lot less. I know, for some of you that is bad news but for 90% of people that is good news. As you can see I imported a self-portrait straight from Flickr (just copy/paste the URL) and made it lighter, enlarged my nose and made my mouth smaller, and it took me only 2 minutes to do all that.
The application supports layers, filters and most basic editting tools and when you are ready you can save the image to your desktop as a JPG or PNG.