# Links

- Scientific
- Technical
- Legal

- The GNU project.
- The GTK widget toolkit.
- The Mesa graphics library.
- The OpenGL technology.
- The GtkGLExt library.
- The Expat XML parser.
- The XML technology.
- The HTTP protocol.
- The FTP protocol.
- The Linux operating system.
- The X Window System.
- The Table of equivalents / replacements / analogs of Windows software in Linux.
- The Free Software Directory.
- The XHTML validator.
- The CSS validator.
- The Mailman mailling lists.
- The GNU-Arch revision control system.
- The gamgi.org domain name Register.
- The gamgi.org website hosting Provider.
- The W3 Schools web building tutorials.
- The SiverOrange web design laboratories.
- The FreeType Project.
- The OGLFT OpenGL/FreeType Text Rendering Library.
- The GLE Tubing and Extrusion Library.
- The PmWiki Wiki software.
- The portable pixmap file format.
- The pnmtopng application to convert .ppm to .png files.
- The pnmtojpeg application to convert .ppm to .jpeg files.
- The pnmtotiff application to convert .ppm to .tiff files.
- The Tango Desktop Project, to create nice, consistent icons for the free software world.
- The DejaVu Truetype fonts.
- The Groff manual.

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