--- a/spec/latest/json-ld-api/index.html	Sun Jun 10 18:56:02 2012 -0700
+++ b/spec/latest/json-ld-api/index.html	Sun Jun 10 22:32:24 2012 -0400
@@ -1019,8 +1019,13 @@
     <section>
     <h3><tdef>Blank Node</tdef></h3>
 
-    <p>A <a>BlankNode</a> a representation of a <tref>blank node</tref>
-      and is used to identify equivalent blank nodes within the same document.</p>
+    <p>A representation of a node that has an identifier starting with the
+      prefix <code>_:</code>, which is typically assigned by a software
+      algorithm. These nodes in the graph often do not have de-reference-able
+      identifiers because they are temporal in nature or do not contain
+      information that is of importance outside of the 
+      <tref>linked data graph</tref>. 
+    </p>
 
     <dl title="[NoInterfaceObject] interface BlankNode : Node" class="idl">
       <dt>readonly attribute DOMString identifier</dt>