Articles pages: (The articles are just for graphic editing software engineer to accumulate knowledge to design better software for the end customers. They are not well-organized.)
Related knowledge of photo editing software:
Sumo Paint: A Very Fine, Free Online Image Editor
Download Free Image Editor free
Online Image Editor: Aviary Phoenix
FotoFlexer Launches Image Editing with Facebook App
Fauxto Takes Online Photo Editing a Step Too Far
Scrapblog Adds More Photo-Editing Tools
Pho.to Can Edit Photos and Turn You Into a Cartoon, Too
Picnik Makes it Easy to Tweet Your Photos
Seenly Offers WebCam Photo Editing
PicTreat: Get Perfect Skin in One Click
Shwup Makes Creating Photo Albums and Muvees Easy