If you need to edit your photo but you don’t have Photoshop on your PC Phixr can help you do this online. It is a pretty advanced online photo editor and offers functionality similar to Photoshop Elements. Additionally, Phixr allows to import images from Flickr, Fotopic, Photobucket, Picasa, Smugmug, and Webshots, as well as from any URL and from your local hard drive. After editing the photo can be saved as a JPG, PNG, PDF, GIF or perform OCR (text recognition). Also it can be emailed or uploaded to all of the above, as well as Buzznet, Costco, DropShots, Fotolog, ImageShack, or LiveJournal.
There are at list five similar online services:
So, you have a choice
UPDATE: Petri Piirainen pointed me to another online tool for image editing – improveyourimages.com. It provides automated solution natural looking and consistent results. It uses innovative method which detects the illumination that was existent when the original photo was taken, detecting any errors of the imaging devices. Better results are achieved through advanced modelling of physics (photonics and color science).