Open Source Graphics with PNG
- Joe Barr discusses PNG, the new open source file format, and the Unisys/CompuServe/GIF controversy. [LinuxWorld]
- http://www.linuxtoday.com/news_story.php3?ltsn=1999-09-09-021-04-PS

Portable Network Graphics - PNG
- Thorough introduction to PNG image format.
- http://www.mywebsite.force9.co.uk/png/

The Sad Story of PNG Gamma Correction
- Explains how PNG gamma "correction" causes color mismatches with other colors on web pages.
- http://hsivonen.iki.fi/png-gamma/

PNG Resources of the Miscellaneous Persuasion
- Links to images, mailing lists, test images, PNG and image compression documents, comics and websites using PNGs, the official site, and some unofficial resource sites.
- http://www.libpng.org/pub/png/pngmisc.html

PNG Tips for Cartoonists
- Article written to encourage cartoonists to use PNG and to share tips on exploiting PNG's strengths.
- http://hackles.org/etc/png.html

MSDN - AlphaImageLoader Filter
- Displays an image within the boundaries of the object and between the object background and content, with options to clip or resize the image. When loading a Portable Network Graphics (PNG) image, transparency from zero to 100 percent is supported.
- http://msdn.microsoft.com/library/default.asp?url=/workshop/author/filter/reference/filters/AlphaImageLoader.asp

PNG-Tech
- A collection of comments, impressions, comparisons, experiments and ideas regarding the PNG (Portable Network Graphics) file format, and related technologies: ZLIB (Data Compression Format and Library), and MNG (Multiple-Image Network Graphics). It is foc
- http://www.cs.toronto.edu/~cosmin/pngtech/

Explorer versus PNG (AlphaImageLoader)
- Information on displaying transparent and translucent (alpha channel) PNGs in Internet Explorer and other browsers.
- http://redvip.homelinux.net/varios/explorer-png-en.html

The Story of PNG
- An article detailing the history of the PNG format.
- http://www.libpng.org/pub/png/slashpng-1999.html

PNG
- Information, applications, and code relating to the PNG image format.
- http://www.libpng.org/pub/png/

W3C: PNG
- W3C overview of PNG. Includes browser tests to see if gamma and alpha work correctly.
- http://www.w3.org/Graphics/PNG