Among the plethora of free online photo editing sites, there's Aviary. This site allows you to upload your pics, add cool filters and effects, crop, correct colors, fix blemishes, red eye, and even whiten your subject's teeth. Aviary is even opening up its API to developers so they can bring you more awesome apps using the free editing tools! It's super simple to use, so go ahead and give it some space on your bookmark toolbar — you'll probably be using it often.
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