--- a/sgml.rst	Sat Oct 29 13:32:16 2016 +0300
+++ b/sgml.rst	Wed Nov 02 11:52:04 2016 +0200
@@ -12,22 +12,22 @@
 An SGML System Conforming to International Standard ISO 8879 -- Standard
 Generalized Markup Language.
 
-  http://www.jclark.com/sp/
-    Home page.
-  http://www.jclark.com/sp/howtoget.htm
-    How to get SP
+http://www.jclark.com/sp/
+  Home page.
+http://www.jclark.com/sp/howtoget.htm
+  How to get SP.
+http://www.whoishostingthis.com/resources/sgml/
+  Comprehensive list of links to SGML resources.
 
 PSGML mode for Emacs
 ====================
 
-  http://www.lysator.liu.se/~lenst/about_psgml/
-    Original home page.
-  http://www.emacswiki.org/emacs/PsgmlMode
-    Emacs wiki.
-  http://www.snee.com/bob/sgmlfree/emcspsgm.html
-    PSGML Tricks.
-  http://psgml.sourceforge.net/
-    Project page.
-  https://sourceforge.net/projects/psgml/
-    Project page.
+http://www.emacswiki.org/emacs/PsgmlMode
+  Emacs wiki.
+http://www.snee.com/bob/sgmlfree/emcspsgm.html
+  PSGML Tricks.
+http://psgml.sourceforge.net/
+  Project page.
+https://sourceforge.net/projects/psgml/
+  Project page.