http://www.converthub.com/resize-image/ Just finished coding it but didn't thoroughly test it with all possible inputs. Been a tiring day and I'm going to bed now. If anyone could help testing it with all possible situations you can think of and possibly find out one or two bugs, I'd really appreciate it and be happy to add your reputation. Thanks!
Nice site. I was actually looking for something like your site. You can check my site it is http://www.mobileimagehut.com you can send a picture taken by cell phone and post on the site