Online Photo Editor

What is the best free online photo editor?

I want to posterize an image to make a multi-layer stencil, what is the best online editor for this?

Public Comments

1. The best one is the one you like the best. Look these over and decide for yourself. http://www.gimp.org/ http://picasa.google.com/ http://www.picnik.com/ http://www.lunapic.com/editor/ http://fotoflexer.com/ http://www.pixlr.com/editor/ http://pixenate.com/ I've heard the gimp may be the best.