Online photo editing
picnik.com
picnik.com
Snipshot does cropping better -- It's more intuitive to constrain to the photo's original proportions. Snipshot also works entirely in JavaScript -- no flash plugin required.
I recently added an option for ourdoings.com users to integrate with Snipshot. I'll keep an eye on picnik too, though. They also have an API.
Picnik appears to be doing it in client-side Actionscript. The real-time rendering (image changes as you drag the slider) makes it much more usable for photo-editing. I can actually use an online photo-editing app now!
For even a moderately-sized digital photo (2MB these days), downloading and especially uploading is slow. It's much faster for snipshot.com to talk to ourdoings.com.
We just got a digital photo frame yesterday, and it's pulling family shots from ourdoings.com. Those frames draw attention to the need for good cropping much better than a web page does.
The way snipshot constrains proportions by default when cropping is helpful. If picnik users forget to choose the appropriate option, they'll end up with a line of thumbnails that are all different.
That said, I still think redeye is a big issue. Also, as broadband gets better the difference between client and server-side image editing will become less important.
Who's site is this? Is it yours, matstc?