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Wikipedia: X-Face - http://en.wikipedia.org/wiki/X-Face
Brief description of this header, its history and a list of compatible software. |
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Dairiki.org: Online X-Face Converter - http://www.dairiki.org/xface/
Converts various image formats to the X-Face format suitable for inclusion in e-mail or Usenet article headers. |
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Mozdev.org: Mnenhy - http://mnenhy.mozdev.org/
Amongst several enhancements to SeaMonkey Mail/News and Mozilla Thunderbird, brings the possibility of displaying X-Face headers. |
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The Face Header - http://quimby.gnus.org/circus/face/
A proposed improvement to the X-Face header. The Face header is a PNG image whereas X-Faces are one-bit images. |
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Ashton, James - http://users.rsise.anu.edu.au/~jaa/
Personal page of the creator of this format, includes some of his remarks on these images. |