| 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. |
| In 70 mm: Newsletter about 70mm cinemas, films, history and technology. |
| Letterbox Format Explanation: Images demonstrating the various formats in which movies are displayed. |
| Ryanwright.com: Flash animation demonstrating the pan-and-scan and letterbox processes. |
| 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. |
| The Swedish Widescreen Pages: History of different widescreen formats and disadvantages of pan-and-scan. |
| 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. |
| Widescreen Information Page: Movie screenshots illustrating the benefits of viewing films in their original aspect ratios. |
| 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. |
| Widescreen vs. Pan & Scan: Images comparing the two formats. |
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