diff --git a/doc/Clients.md b/doc/Clients.md
new file mode 100644
index 000000000..380c423c0
--- /dev/null
+++ b/doc/Clients.md
@@ -0,0 +1,14 @@
+# Clients
+
+@subpage gtfpga
+
+Every server needs clients which they serve. In case of S2SS these clients are called _nodes_.
+
+Its a goal of this project to provide connectors so several proven simulators.
+Take a look at the `clients/` directory for them:
+
+ - RTDS UDP Network Card ?
+ - RTDS via GTFPGA
+ - OPAL
+ - Labview
+ - Simulink
diff --git a/doc/Configuration.md b/doc/Configuration.md
index 9417ae762..aa54de244 100644
--- a/doc/Configuration.md
+++ b/doc/Configuration.md
@@ -1,8 +1,21 @@
 # Configuration
 
-## Configuration file
+## File
 
-Take a look in the 'Examples' section for some configurations.
+The server gets exclusively configured by its configuration file.
+
+The following sections describes the available options.
+Take a look in the 'Examples' section for some examples.
+
+### Global
+
+- *name*:
+- *affinity*
+
+
+### Nodes
+
+### Paths
 
 ## Tuning
 
diff --git a/doc/GTPGA.md b/doc/GTPGA.md
new file mode 100644
index 000000000..f3452b3d8
--- /dev/null
+++ b/doc/GTPGA.md
@@ -0,0 +1,3 @@
+# GTFPGA {#gtfpga}
+
+Hallo :-)
diff --git a/doc/Mainpage.md b/doc/Mainpage.md
index bcfc8a1dd..47fbaa294 100644
--- a/doc/Mainpage.md
+++ b/doc/Mainpage.md
@@ -1,6 +1,4 @@
-# Readme \section Readme
-
-This is the readme file for the S2SS server. Take a look at the `doc/html` directory for a full documentation.
+S2SS is a client server application based on UDP/IP to connect simulation equipment.
 
 ## Contact
 
@@ -36,9 +34,7 @@ tools to setup the network emulation and interfaces.
 Install these via:
 
 	$ sudo yum install iproute2
-
 or:
-
 	$ sudo apt-get install iproute2
 
 ## Configuration
@@ -62,10 +58,22 @@ Afterwards privileges can be dropped by using the `user` and `group` settings in
 
 ### Examples
 
- 1. Send/Receive of random data:
+ 1. Start server:
+
+	$ ./server etc/example.conf
+
+ 2. Receive/dump data to file
+
+	$ ./receive *:10200 > dump.csv
+
+ 3. Replay recorded data:
+
+	$ ./send 4 192.168.1.12:10200 < dump.csv
+
+ 4. Send random generated values:
 
 	$ ./random 1 4 100 | ./send 4 192.168.1.12:10200
 
- 2. Ping/Pong Latency
+ 5. Test ping/pong latency:
 
 	$ ./test latency 192.168.1.12:10200