Upon giving it a try, I was amazed. I am an avid Photoshop fan, but the Picnik software is a really great alternative, especially for our clients who need to edit photos for online without proper software and expertise.
Picnik was simple to use and more robust than I expected. Right from online, you can upload a photo, crop, resize, sharpen, correct exposure, remove red eye, rotate, and more -- the end result is an exported photo as you created. The bonus is that the software is free. They also offer a premium account if you want to do more, but the basic account provides quite a bit.
Picnik is a great photo editing tool and alternative to other costly software. The easy to use interface allows you to clean up and edit pictures without knowing a thing about photo editing. The company has been featured in CNET, PCmag, Mashable, Time Magazine, and the Wall Street Journal.