--- a/graph.rst	Fri Jan 22 15:04:23 2010 +0200
+++ b/graph.rst	Fri Jan 22 15:04:44 2010 +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 +23,20 @@
 
   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.
+
+Gnuplot supports many types of plots in either 2D and 3D. It can draw using
+lines, points, boxes, contours, vector fields, surfaces, and various
+associated text. It also supports various specialized plot types.
+
+Gnuplot supports many different types of output: interactive screen terminals
+(with mouse and hotkey input), direct output to pen plotters or modern
+printers, and output to many file formats (eps, fig, jpeg, LaTeX, metafont,
+pbm, pdf, png, postscript, svg, ...).
+
+  http://www.gnuplot.info
+                home page