linked to new polymer examples

src/site/docs/tutorials/custom-elements/index.markdown

 ---
 layout: default
 title: "Target 8: Define a Custom DOM Tag"
 description: "Define a custom DOM element tag with help from the Web UI package"
 has-permalinks: true
 tutorial:
   id: web-components
 ---
 
 {% capture whats_the_point %}
@@ skipping 18 matching lines @@
   <li>
     <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/target08/convertthis"
        target="_blank">convertthis</a>
   </li>
 </ul>
 
 {% endcapture %}
 
 {% capture content %}
 
+<hr>
+
+<aside class="alert" style="background-color:Lavender;color:SlateBlue">
+  <font size="24">
+  <i class="icon-bullhorn"> </i>
+  </font>
+
+  The Dart Web UI team recently
+  <a href="https://groups.google.com/a/dartlang.org/forum/#!topic/web-ui/6laXXxRtA7k">announced</a>
+  a port of the Polymer project:
+  <a href="http://pub.dartlang.org/packages/polymer">polymer.dart</a>.
+
+  We've converted most of the tutorial Web UI examples and compiled some
+  <a href="https://github.com/dart-lang/dart-tutorials-samples/blob/master/web/to-polymer-notes.txt" target="_blank">notes</a>
+  along the way.
+  Check out source code for the polymer version of the
+  <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/target08-polymer/drseuss"
+     target="_blank">drseuss</a>
+  example.
+</aside>
+
+<hr>
+
 Custom elements are one kind of web component
 defined in the Web Components model.
 Using templates and scripts,
 a custom element defines a new DOM tag
 that extends an existing tag.
 This target shows you how to define a custom element
 and how to create an instance of that element.
 Dart's implementation of custom elements is in the
 <a href="http://pub.dartlang.org/packages/web_ui"
    target="blank">Web UI package</a>,
@@ skipping 344 matching lines @@
 </a>
   </div>
   <div class="span3">
   <a href="/docs/tutorials/fetchdata/" class="pull-right">Fetch Data Dynamically <i class="icon-chevron-right"> </i> </a>
   </div>
 </div>
 
 {% endcapture %}
 
 {% include tutorial.html %}