I came across Picnik – a web site providing free photo editing and special effects. The site is still in Beta, and some of the creative tool tabs are annotated with ‘Coming Soon". However, the photo editing tools all work, the interface is quite slick, all photo editing is done within the browser and there is seamless integration with Flickr. There’s also no sign of any advertising (yet).
For anyone considering purchasing a photo editing application – don’t! Try this first.