diff --git a/appendices/history.xml b/appendices/history.xml
index 0b9f86a97a..ffc5845061 100644
--- a/appendices/history.xml
+++ b/appendices/history.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.21 $ -->
+<!-- $Revision: 1.22 $ -->
 
 <appendix id="history">
  <title>History of PHP and related projects</title>
@@ -168,11 +168,11 @@
   <sect2 id="history.pear">
    <title>PEAR</title>
    <para>
-    PEAR, the PHP Extension and Application Repository (originally,
-    PHP Extension and Add-on Repository) is PHP's version of
-    foundation classes, and may grow in the future to be one
-    of the key ways to distribute both PHP and C-based PHP
-    extensions among developers.
+    <ulink url="&url.php.pear;">PEAR</ulink>, the PHP Extension and
+    Application Repository (originally, PHP Extension and Add-on
+    Repository) is PHP's version of foundation classes, and may grow in
+    the future to be one of the key ways to distribute both PHP and
+    C-based PHP extensions among developers.
    </para>
    <para>
     PEAR was born in discussions held in the PHP Developers'
@@ -189,15 +189,19 @@
     for database access, content caching, mathematical
     calculations, eCommerce and much more.
    </para>
+   <para>
+    More information about PEAR can be found in <ulink
+    url="&url.php.pear.manual;">the manual</ulink>.
+   </para>
   </sect2>
 
   <sect2 id="history.phpqa">
    <title>PHP Quality Assurance Initiative</title>
    <para>
-    The PHP Quality Assurance Initiative was set up in the
-    summer of 2000 in response to criticism that PHP releases
-    were not being tested well enough for production
-    environments. The team now consists of a core group of
+    The <ulink url="&url.php.prerelease;">PHP Quality Assurance
+    Initiative</ulink> was set up in the summer of 2000 in response to
+    criticism that PHP releases were not being tested well enough for
+    production environments. The team now consists of a core group of
     developers with a good understanding of the PHP code
     base. These developers spend a lot of their time
     localizing and fixing bugs within PHP. In addition
@@ -210,9 +214,9 @@
   <sect2 id="history.phpgtk">
    <title>PHP-GTK</title>
    <para>
-    PHP-GTK is the PHP solution for writing client side
-    GUI applications. Andrei Zmievski remembers the planing
-    and creation process of PHP-GTK:
+    <ulink url="&url.php.gtk;">PHP-GTK</ulink> is the PHP solution for
+    writing client side GUI applications. Andrei Zmievski remembers the
+    planing and creation process of PHP-GTK:
    </para>
    <blockquote>
     <para>