diff -r 9588dcef6793 -r 655d8e78454d doc/groups.dox
--- a/doc/groups.dox	Wed May 04 13:07:10 2005 +0000
+++ b/doc/groups.dox	Thu May 05 11:05:25 2005 +0000
@@ -48,6 +48,30 @@
 new maps from existing ones.
 */
 
+
+/**
+@defgroup graph_maps Graph Maps 
+@ingroup maps
+\brief Special Graph-Related Maps.
+
+These maps are specifically designed to assign values to the nodes and edges of
+graphs.
+*/
+
+
+/**
+\defgroup map_adaptors Map Adaptors
+\ingroup maps
+\brief Tools to create new maps from existing ones
+
+Map adaptors are used to create "implicit" maps from other maps.
+
+Most of them are \ref concept::ReadMap "ReadMap"s. They can
+make arithmetic oprerations between one or two maps (negation, scalig,
+addition, multiplication etc.) or e.g. convert a map to another one
+of different Value type.
+*/
+
 /**
 @defgroup auxdat Auxiliary Data Structures
 @ingroup datas