--- a/graph.rst	Mon Dec 07 00:03:19 2009 +0200
+++ b/graph.rst	Wed Dec 09 22:47:38 2009 +0200
@@ -1,5 +1,9 @@
 -*- mode: outline; coding: utf-8 -*-
 
+* General view.
+
+  http://en.wikipedia.org/wiki/List_of_graphing_software
+
 * RRDtool.
 
 RRDtool is the OpenSource industry standard, high performance data logging and
@@ -19,3 +23,11 @@
 
   http://www.graphviz.org/
                 home page
+
+* Gnuplot.
+
+Gnuplot is a portable command-line driven graphing utility for linux, OS/2, MS
+Windows, OSX, VMS, and many other platforms.
+
+  http://www.gnuplot.info
+                home page