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:
20+ Photoshop Actions for Photo Editing
How to change the background color
Yahoo spruces up Flickr photo-sharing service with free editing program
Edit Pictures And Create Graphics From Your Browser
Graphics Package and Video Editor Reviews
Create your online photo album
Yahoo adds editing tools to Flickr