--- a/html-data-guide/index.html	Wed Dec 21 12:10:04 2011 +0000
+++ b/html-data-guide/index.html	Wed Dec 21 12:16:23 2011 +0000
@@ -336,7 +336,7 @@
               Writing out IRIs in full can clutter HTML so RDFa provides four mechanisms to shorten IRIs:
             </p>
             <ul>
-              <li>There are several built-in prefixes which can be used for popular vocabularies. These are listed as part of the <a href="http://www.w3.org/profile/rdfa-1.1">RDFa 1.1 Core initial context</a>. Any IRI within one of these <a title="vocabulary">vocabularies</a> can be abbreviated using the <code>prefix:name</code> notation.</li>
+              <li>There are several built-in prefixes which can be used for popular vocabularies. These are listed as part of the <a href="http://www.w3.org/2011/rdfa-context/rdfa-1.1">RDFa 1.1 Core initial context</a>. Any IRI within one of these <a title="vocabulary">vocabularies</a> can be abbreviated using the <code>prefix:name</code> notation.</li>
               <li>The <code>@prefix</code> attribute can be used to define additional prefixes for other vocabularies.</li>
               <li>The <code>@vocab</code> attribute defines a default <a>vocabulary</a> within its scope; any IRIs that begin with this vocabulary can be abbreviated to a short name (the remainder of the IRI after the vocabulary IRI).</li>
               <li>Namespace declarations (<code>@xmlns:prefix</code> attributes) can also be used to define prefixes. <strong>This mechanism is deprecated and should not be used.</strong></li>