--- a/source-docgen.rst	Tue Aug 24 22:22:15 2010 +0300
+++ b/source-docgen.rst	Tue Aug 24 22:29:27 2010 +0300
@@ -1,5 +1,18 @@
 -*- mode: outline; coding: utf-8 -*-
 
+* About.
+
+  http://en.wikipedia.org/wiki/Comparison_of_documentation_generators
+
+* Doxygen.
+
+Doxygen is a documentation generator for C++, C, Java, Objective-C, Python,
+IDL (CORBA and Microsoft flavors), Fortran, VHDL, PHP, C#.
+
+  http://www.doxygen.org
+                home page
+  http://en.wikipedia.org/wiki/Doxygen
+
 * DOC++.
 
 DOC++ is a documentation system for C, C++, IDL and Java generating both TeX
@@ -9,3 +22,14 @@
 
   http://docpp.sourceforge.net/
                 home page
+
+* ROBODoc
+
+ROBODoc is a documentation tool. It extracts the documentation from your source
+code and formats it in HTML, RTF, TeX, XML DocBook (PDF), or ASCII. Works with
+C, C++, Fortran, Perl, Scripts, Assembler, Tcl, Basic, and any language that
+supports remarks.
+
+  http://sourceforge.net/projects/robodoc
+                home page
+  http://en.wikipedia.org/wiki/ROBODoc