Digital Photography

Camera - Taking pictures
Composing Your Pictures (Kodak)
Digital Photography (Wikipedia)
Digital Photography FAQ
Exposure - Film and light record image
Glossary of Digital Photography Terminology (Digital Photography Tips)
Hidden Data in JPEG Files (Netzreport)
How Digital Cameras Work (How Stuff Works.com)
Rotating Line Cameras
Tips for Beginner Photographers (Digital Photography School)

Articles
Glossary
PrintWiki
Wikipedia