FotoFlexer is the most powerful online photo editor in existence. It can remove blemishes, change skin/hair color, morph photos and more! 100% free.
You can start by uploading a photo from your hard drive or edit photos from a selection of photo customizing sites, including Flickr, Facebook, or Picasa. For this demonstration, I connected FotoFlexer to my Flickr account.
After you select a picture, the image editor loads and you can start having fun. You can choose from several different tabs, including a basic editor, effects, layers, and geeky stuff, meaning more advanced editing.