diff --git a/docs/LanguageExtensions.html b/docs/LanguageExtensions.html
index 739181d..5b8518b 100644
--- a/docs/LanguageExtensions.html
+++ b/docs/LanguageExtensions.html
@@ -52,7 +52,10 @@
 <h2 id="blocks">Blocks</h2>
 <!-- ======================================================================= -->
 
-<p>The idea, syntax, and semantics.</p>
+<p>The syntax and high level language feature description is in <a
+href="BlockLanguageSpec.txt">BlockLanguageSpec.txt</a>.  Implementation and ABI
+details for the clang implementation are in <a 
+href="BlockImplementation.txt">BlockImplementation.txt</a>.</p>
 
 <!-- ======================================================================= -->
 <h2 id="overloading-in-c">Function Overloading in C</h2>