Befunky - http://www.befunky.com/
Fotoflexer - http://fotoflexer.com/
Lunapic.com - http://lunapic.com/
Free Online Photo Editor - http://www.freeonlinephotoeditor.com/
Pizap - pizap.com
Pic Monkey - picmonkey.com
Pixlr - http://pixlr.com/