--- a/longdesc1/longdesc.html	Sat Dec 14 12:57:58 2013 -0500
+++ b/longdesc1/longdesc.html	Sat Dec 14 18:09:50 2013 -0500
@@ -564,6 +564,17 @@
           descriptions, can be readily localized.</dd>
         <dd><em>Helped by</em>: <a href="#structured-markup">Structured Markup</a>, 
           <a href="#reuse">Reuse</a>, <a href="#maintenance">Maintenance</a>.</dd>
+        <dt>Image search</dt>
+        <dd>Many search engines provide an option to search for images and present 
+          the results out of context. The ability to discover and process identified 
+          descriptions allows search engines to improve the source material they use 
+          to support text-based queries for images.</dd>
+        <dd><em>Requires</em>: <a href="#discoverability">Discoverability</a></dd>
+        <dt>Describing images</dt>
+        <dd>Image search tools identify multiple copies of the same image. Where a 
+          search tool can identify a description of an image, this can be provided 
+          to the user as a description for any copies of that image.</dd>
+        <dd><em>Requires</em>: <a href="#discoverability">Discoverability</a></dd>
       </dl>
       <h3 id="requirements">Requirements for an Image Description Functionality</h3>
       <dl>