diff --git a/content/static/images/pentamedia.png b/content/static/images/pentamedia.png
new file mode 100644
index 000000000..0c592e541
Binary files /dev/null and b/content/static/images/pentamedia.png differ
diff --git a/content/static/style/default.css b/content/static/style/default.css
index ca923f75f..b9e722dc7 100644
--- a/content/static/style/default.css
+++ b/content/static/style/default.css
@@ -263,6 +263,23 @@ p.new_comment a:before {
   text-decoration: underline;
 }
 
+/* -- Adspace -- */
+#adspace {
+  padding: 0 1em 0 2em;
+}
+
+#adspace h2 {
+  font-size: 1.2em;
+  font-style: italic;
+  color: #666;
+  padding: 0;
+}
+#adspace p {
+  margin: 0;
+  padding: 0;
+  margin-bottom: 1em;
+}
+
 /* -- Upcoming -- */
 #upcoming {
   padding: 0 1em 0 2em;
diff --git a/xsl/xhtml5.xsl b/xsl/xhtml5.xsl
index 1927e14db..6f3a4c5d4 100644
--- a/xsl/xhtml5.xsl
+++ b/xsl/xhtml5.xsl
@@ -93,6 +93,15 @@
 	    </xsl:comment>
 
 	    <aside id="rsidebar">
+	      <div id="adspace">
+		<h2>Podcast-Portal</h2>
+		<p>
+		  <a href="http://pentamedia.org/">
+		    <img src="{concat($baseurl, '/images/pentamedia.png')}"/>
+		  </a>
+		</p>
+	      </div>
+
 	      <xsl:call-template name="calendar-events" />
 
 	      <xsl:call-template name="chaosupdates" />