Index: x/installing/TTF-and-OTF-fonts.xml
===================================================================
--- x/installing/TTF-and-OTF-fonts.xml	(revision 370612a81eb0f4ae8425666cf39091b0f7f26f82)
+++ x/installing/TTF-and-OTF-fonts.xml	(revision 32f90b11f105e140f14e344e929bf7dfbe049a58)
@@ -47,5 +47,10 @@
       If a font provides both TTF and OTF forms, prefer the OTF form in
       linux, it may provide more features for programs which know how to use them
-      (such as xelatex).
+      (such as xelatex). But if a font is suppliedi with one or more variable fonts,
+      do not use those - desktop applications need static fonts. For information
+      about variable fonts see <ulink
+      url="https://fonts.google.com/knowledge/introducing_type/introducing_variable_fonts/">
+      Variable Fonts</ulink>, they are partiularly useful where a web page forces one
+      and specifies details in its CSS.
     </para>
 
@@ -220,6 +225,5 @@
 
     <para>
-      <ulink url=
-      "&gnome-download-http;/cantarell-fonts/">Cantarell fonts</ulink>
+      <ulink url="https://fonts.google.com/specimen/Cantarell">Cantarell fonts</ulink>
       &ndash; The Cantarell typeface family provides a contemporary Humanist
       sans serif. It is particularly optimised for legibility at small sizes
@@ -359,11 +363,9 @@
     <para>
       The <ulink
-      url="https://www.google.com/get/noto/">Noto fonts</ulink> ('No Tofu', i.e.
+      url="https://fonts.google.com/noto/">Noto fonts</ulink> ('No Tofu', i.e.
       avoiding boxes with dots [hex digits] when a glyph cannot be found) is a
       set of fonts which aim to cover <emphasis>every glyph in unicode, no
       matter how obscure</emphasis>. These fonts, or at least the Sans Serif
-      fonts, are used by KF5 (initially only for gtk applications). If you want
-      to cover historic languages, you can download all the fonts by clicking
-      on the link at the top of that page.
+      fonts, are used by KF5 (initially only for gtk applications).
     </para>
 
@@ -371,8 +373,17 @@
       People using languages written in Latin, Greek or Cyrillic alphabets need
       only install Noto Sans itself, and perhaps Noto Sans Symbols for currency
-      symbols. For more details on the CJK fonts see <xref
-      linkend="NotoSansCJK"/> below. There are also separate fonts for every
+      symbols. For more details on the organization of Noto fonts see <ulink
+      url="https://fonts.google.com/noto/use#how-are-noto-fonts-organized/">how
+      are noto fonts organized</ulink>. There are also separate fonts for every
       other current writing system, but these too will also require Noto Sans
       (or Noto Serif) and perhaps Noto Symbols.
+    </para>
+
+    <para>
+      It is perhaps easier to download a specific Noto font by going to <ulink
+      url="https://fonts.google.com/specimen/Noto+Sans">Noto Sans</ulink>
+      and changing the font name as appropriate, with '+' between each word,
+      e.g. 'Noto+Kufi+Arabic', 'Noto+Serif+Georgian' or whatever, then clicking
+      on 'Download family'.
     </para>
 
@@ -397,6 +408,7 @@
     <para>
       When KDE Frameworks 5 was first released, it used the <ulink url=
-      "https://download.kde.org/stable/plasma/5.4.3/oxygen-fonts-5.4.3.tar.xz">
-      Oxygen fonts</ulink>
+      "https://fonts.google.com/specimen/Oxygen">Oxygen Sans</ulink> and
+      <ulink url=
+      "https://fonts.google.com/specimen/Oxygen+Mono">OxygenMono</ulink> fonts
       which were designed for integrated use with the KDE desktop. Those fonts
       are no-longer actively maintained, so KDE made a decision to switch to
@@ -404,15 +416,4 @@
       <emphasis>required</emphasis> by 'startkde'.
     </para>
-
-    <para>
-      Originally these fonts were only supplied as source, needing <xref
-      linkend="cmake"/> and <xref linkend="fontforge"/> to create the TTF
-      files. But for a while the source has also included the prepared TTF.
-      The only unusual feature is that each TTF file is in its own subdirectory
-      (<filename class="directory">oxygen-fonts/{*-?00}/</filename>) with the
-      source in further subdirectories. You could just install the whole
-      tarball if you prefer, although that will waste space.
-    </para>
-
 
     <bridgehead renderas="sect3" id="source-code-pro"
@@ -474,7 +475,7 @@
       contains more than 1900 characters). Earlier fonts will not be able to
       support either Cantonese or use of these characters where local names are
-      written in Mandarin. The UMing HK, Noto Sans CJK HK and WenQuanYi Zen Hei
+      written in Mandarin. The UMing HK, Noto Sans HK and WenQuanYi Zen Hei
       fonts all seem to cover Hong Kong usage
-      (<application>fontconfig</application> disagrees about Noto Sans CJK HK).
+      (<application>fontconfig</application> disagrees about Noto Sans HK).
     </para>
 
@@ -483,4 +484,9 @@
       narrower. For their CJK content, all of these fonts can be regarded as
       monospaced (i.e. fixed width).
+    </para>
+
+    <para>
+      If you wish to use Noto fonts, there are also Serif versions of their
+      various CJK fonts.
     </para>
 
@@ -500,4 +506,14 @@
       looks quite different, and modern Hei ("sans"). Unless you appreciate the
       differences, you probably do not want to install Kai fonts.
+    </para>
+
+    <para>
+      The current versions of Chinese Noto Sans fonts can be found at <ulink
+      url="https://fonts.google.com/specimen/Noto+Sans+SC">Noto Sans SC</ulink>
+      for Simplified Chinese, <ulink
+      url="https://fonts.google.com/specimen/Noto+Sans+TC">Noto Sans TC</ulink>
+      for Traditional Chinese, and as mentioned above <ulink
+      url="https://fonts.google.com/specimen/Noto+Sans+HK">Noto Sans HK</ulink>
+      for use in Hong Kong.
     </para>
 
@@ -514,8 +530,13 @@
     </para> -->
 
+<!-- the get/noto/help/cjk url now gives general info on the organization of
+    Noto fonts, linked from above.  The current versions are no-longer in
+    ttc packages, there is a separate set of files for each CJK language.
+    Therefore, this appears to be redundant.
+
     <bridgehead renderas="sect4" id="NotoSansCJK"
     xreflabel="Noto Sans CJK">Noto Sans CJK</bridgehead>
 
-    <!-- indexterm entry retained for future linkage from kde -->
+    <!\-\- indexterm entry retained for future linkage from kde \-\->
     <indexterm zone="TTF-and-OTF-fonts NotoSansCJK">
       <primary sortas="a-noto-sans-cjk">Noto Sans CJK</primary>
@@ -530,5 +551,5 @@
       all weights in a 110MB file, or you can download subsets. There are
       also Monospace versions.
-    </para>
+    </para> -->
 
     <bridgehead renderas="sect4" id="Opendesktop-fonts"
@@ -575,5 +596,5 @@
     <para>
       <ulink url=
-      "https://packages.debian.org/sid/fonts-arphic-uming">UMing fonts</ulink>
+      "http://ftp.debian.org/debian/pool/main/f/fonts-arphic-uming/">UMing fonts</ulink>
       &ndash; sets of Chinese Ming fonts (from Debian, use the '.orig' tarball)
       in a ttc which contain variations of Simplified and Traditional Chinese
@@ -617,6 +638,8 @@
 
     <para>
-      Apart from the fonts detailed below, also consider <xref
-      linkend="NotoSansCJK"/>.
+      Apart from the fonts detailed below, also consider <ulink
+      url="https://fonts.google.com/specimen/Noto+Sans+JP">Noto Sans
+      JP</ulink>.
+
     </para>
 
@@ -692,6 +715,7 @@
 
     <para>
-      Alternatively, consider <xref linkend="NotoSansCJK"/> (all of the
-      variants cover Hangul) or <xref linkend="wenquanyi-zenhei"/>.
+      Alternatively, consider <ulink
+      url="https://fonts.google.com/specimen/Noto+Sans+KR">Noto Sans
+      KR</ulink> or <xref linkend="wenquanyi-zenhei"/>.
     </para>
 
