diff --git a/reference/ldap/reference.xml b/reference/ldap/reference.xml
index 96fcfb4667..dc6fcc409e 100644
--- a/reference/ldap/reference.xml
+++ b/reference/ldap/reference.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
  <reference id="ref.ldap">
   <title>LDAP functions</title>
   <titleabbrev>LDAP</titleabbrev>
@@ -70,11 +70,16 @@
        <ulink url="&url.ldap.netscape;">Netscape</ulink>
       </para>
      </listitem>
+<!--
      <listitem>
       <para>
        <ulink url="&url.ldap.michigan;">University of Michigan</ulink>
       </para>
      </listitem>
+
+redirects to openldap.org
+
+-->
      <listitem>
       <para>
        <ulink url="&url.ldap.openldap;">OpenLDAP Project</ulink>
@@ -88,7 +93,9 @@
     </itemizedlist>
 
     <para>    
-     The Netscape SDK contains a helpful Programmer's Guide in HTML format.
+     The Netscape SDK contains a helpful
+     <ulink url="&url.ldap.netscape.sdk.docs;">Programmer's Guide</ulink> in
+     HTML format.
     </para>
    </section>
 
@@ -96,8 +103,10 @@
     &reftitle.required;
     <para>
      You will need to get and compile LDAP client libraries from
-     either the University of Michigan ldap-3.3 package or the
-     Netscape Directory SDK 3.0 to compile PHP with LDAP support.
+     either the University of Michigan <ulink url="&url.ldap.mt;">
+     ldap-3.3 package</ulink>, <ulink url="&url.ldap.netscape.sdk;"> Netscape
+     Directory SDK 3.0</ulink> or <ulink url="&url.ldap.openldap.source;">
+     OpenLDAP</ulink> to compile PHP with LDAP support.
     </para>
    </section>