diff --git a/doc/src/sgml/docguide.sgml b/doc/src/sgml/docguide.sgml
index 734ea7351976d31a2843699b0be579693168fc08..a382e3eaaf07e8c74fe6d599c395a7ed4c17940f 100644
--- a/doc/src/sgml/docguide.sgml
+++ b/doc/src/sgml/docguide.sgml
@@ -1,4 +1,4 @@
-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/docguide.sgml,v 1.37 2001/12/08 03:24:22 thomas Exp $ -->
+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/docguide.sgml,v 1.38 2002/01/08 05:39:26 momjian Exp $ -->
 
 <appendix id="docguide">
  <title>Documentation</title>
@@ -278,7 +278,7 @@ CATALOG "/usr/local/share/sgml/docbook/3.1/catalog"
    <para>
     More information about the FreeBSD documentation tools can be
     found in the <ulink
-    url="http://www.freebsd.org/tutorials/docproj-primer/tools.html">FreeBSD
+    url="http://www.freebsd.org/doc/en_US.ISO8859-1/books/fdp-primer/index.html">FreeBSD
     Documentation Project's instructions</ulink>.
    </para>
   </sect2>
diff --git a/doc/src/sgml/geqo.sgml b/doc/src/sgml/geqo.sgml
index 2810f578a81efc2ba23fb46d8a280944ea8fc350..95f99b11886d05860f482e4485612b036f27d498 100644
--- a/doc/src/sgml/geqo.sgml
+++ b/doc/src/sgml/geqo.sgml
@@ -1,5 +1,5 @@
 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/geqo.sgml,v 1.20 2001/11/21 05:53:41 thomas Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/geqo.sgml,v 1.21 2002/01/08 05:39:26 momjian Exp $
 Genetic Optimizer
 -->
 
@@ -290,7 +290,31 @@ Genetic Optimizer
        <para>
 	FAQ in <ulink url="news://comp.ai.genetic">comp.ai.genetic</ulink>
 	is available at <ulink
-	 url="ftp://ftp.Germany.EU.net/pub/research/softcomp/EC/Welcome.html">Encore</ulink>.
+	url="http://surf.de.uu.net/encore/www/">here</ulink>.
+       </para>
+      </abstract>
+     </bookbiblio>
+
+     <bookbiblio>
+      <title>
+       Evolutionary Computation and its application to art and design
+
+      </title>
+      <authorgroup>
+       <author>
+	<firstname>Craig</firstname>
+	<surname>Reynolds</surname>
+       </author>
+      </authorgroup>
+      <publisher>
+       <publishername>
+	InterNet resource
+       </publishername>
+      </publisher>
+      <abstract>
+       <para>
+	The URL is <ulink
+	url="http://www.red3d.com/cwr/evolve.html">here</ulink>.
        </para>
       </abstract>
      </bookbiblio>
diff --git a/doc/src/sgml/plperl.sgml b/doc/src/sgml/plperl.sgml
index 6cf9e83069a8fd6c51e9892e7f6559d72253bb4b..a679c5de18940c51a8cf58b08714853e42ffd531 100644
--- a/doc/src/sgml/plperl.sgml
+++ b/doc/src/sgml/plperl.sgml
@@ -1,5 +1,5 @@
 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/plperl.sgml,v 2.12 2002/01/07 02:29:13 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/plperl.sgml,v 2.13 2002/01/08 05:39:26 momjian Exp $
 -->
 
 <chapter id="plperl">
@@ -180,7 +180,7 @@ CREATE FUNCTION badfunc() RETURNS integer AS '
   <para>
    Access to database itself from your Perl function can be done via
    an experimental module <ulink
-   url="http://www.formenos.org/PgSPI/"><literal>DBD::PgSPI</literal></ulink>
+   url="http://cpan.digisle.net/authors/id/A/AP/APILOS/"><literal>DBD::PgSPI</literal></ulink>
    (also on <ulink url="http://www.cpan.org">CPAN</ulink>). This
    module makes available a <acronym>DBI</>-compliant database-handle
    named <varname>$pg_dbh</varname>, and you can use that to perform