</p>
<p>
-For more information about gamma correction see:
-<a href="http://www.inforamp.net/~poynton/notes/colour_and_gamma/GammaFAQ.html">
-the Gamma FAQ</a>
+For more information about gamma correction, see the
+<a href="https://en.wikipedia.org/wiki/Gamma_correction">Wikipedia article</a>
</p>
<h2>Extensions</h2>
<p>
-The following MESA-specific extensions are implemented in the Xlib driver.
+The following Mesa-specific extensions are implemented in the Xlib driver.
</p>
<h3>GLX_MESA_pixmap_colormap</h3>