In 70 mm
- Newsletter about 70mm cinemas, films, history and technology.
- http://www.in70mm.com

Letterbox Format Explanation
- Images demonstrating the various formats in which movies are displayed.
- http://www.firsttvdrama.com/show2/letterb.php3

Ryanwright.com
- Flash animation demonstrating the pan-and-scan and letterbox processes.
- http://www.ryanwright.com/ht/oar.shtml

Widescreen vs. Pan & Scan
- Images comparing the two formats.
- http://dvd.ign.com/news/16377.html

Widescreen Resources and Information
- Example images of movies in widescreen and pan-and-scan or open-matte formats, pros and cons of the formats, and explanations of aspect ratios and filming processes.
- http://home1.gte.net/res0mrb7/widescreen/

Widescreen Information Page
- Movie screenshots illustrating the benefits of viewing films in their original aspect ratios.
- http://www.twowiresthin.com/aspect/

Hong Kong Fanatic: Intro to Widescreen
- Images showing various aspect ratios, demonstrating letterbox, pan-and-scan, and open-matte formats, explaining anamorphic DVDs, and comparing standard and widescreen TVs.
- http://hkfanatic.com/widescreen/

The Swedish Widescreen Pages
- History of different widescreen formats and disadvantages of pan-and-scan.
- http://www1.tripnet.se/~adler/wide2.html

The Letterbox and Widescreen Advocacy Page
- Organization defending the visions and intentions of filmmakers. Aspect ratio explanations, examples comparing images of widescreen and pan-and-scan versions of many films, sound and video clips, and commentary.
- http://www.widescreen.org/

Widescreen Advocate
- Information resource for those wishing to participate in a grassroots education effort. Flyers, brochures, petitions, and list of DVDs not in original aspect ratio.
- http://www.widescreenadvocate.org/