diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8edc970
--- /dev/null
+++ b/README.md
@@ -0,0 +1,31 @@
+# MTSatellite
+
+MTSatellite is "realtime" web mapping system for [Minetest](http://minetest.net) worlds.
+To use it you have to configure your Minetest server to use the Redis backend data store.
+Instead of a real Redis server you have to run **mtredisalize**. This server stores the data
+in an optimized form and collects changes made to the world over a configurable amount
+of time periodically. After a cycle of collection the web server **mtwebmapper** is triggered
+to regenerate the map. To not fully regenerate the whole world map but only the differences
+the map has to be pre-rendered with **mtseeder**.
+
+* [mtredisalize](cmd/mtredisalize) is a server which has to be configured a Redis backend to the
+  Minetest server. It stores the data in an opitimized form to make updates of the pre-rendered map fast.
+  It is also used to track the changes made to the world. They are aggregated over
+  a defined time interval and then send to the mtwebmapper server.
+
+* [mtwebmapper](cmd/mtwebmapper) Web server that serves [Leaflet](http://leafletjs.com) compatible tiles to a
+  web browser. Running in the background this server updates the pre-computed map tiles.
+
+* [mtdbconverter](cmd/mtdbconverter) is converter between Minetest databases. mtredisalize works
+  best if you use a special interleaved LevelDB key schema. To bring your old database (LevelBD or SQLite3)
+  into this format this tool does the job. It can also be used to convert the interleaved database
+  back to a plain LevelDB or SQLite3 one.
+
+* [mtseeder](cmd/mtseeder) pre-computes all tiles of the map of the world plus a set of pyramidal overview images.
+  Even playing in a dynamic and fully changeable world most of the data is pretty constant over time. Therefore
+  it make sense to do only small updates on pre-calculated images instead of generating
+  the map entirely on the fly.
+
+This is Free Software under the terms of the MIT license.
+See [LICENSE](LICENSE) file for details.  
+(c) 2014 by Sascha L. Teichmann
diff --git a/README b/cmd/mtredisalize/README
similarity index 88%
rename from README
rename to cmd/mtredisalize/README
index 7b691c3..d106345 100644
--- a/README
+++ b/cmd/mtredisalize/README
@@ -34,7 +34,7 @@ it is only tested on Ubuntu 14.04/amd64.
 
 Obtain:
 
-  $ go get bitbucket.org/s_l_teichmann/mtredisalize/cmd/mtredisalize
+  $ go get bitbucket.org/s_l_teichmann/mtsatellite/cmd/mtredisalize
 
 Development:
 
@@ -42,8 +42,8 @@ Development:
   $ go install github.com/mattn/go-sqlite3
   $ go get -u github.com/jmhodges/levigo
   $ go install github.com/jmhodges/levigo
-  $ hg clone  https://s_l_teichmann@bitbucket.org/s_l_teichmann/mtredisalize
-  $ cd mtredisalize/cmd/mtredisalize
+  $ hg clone  https://s_l_teichmann@bitbucket.org/s_l_teichmann/mtsatellite
+  $ cd mtsatellite/cmd/mtredisalize
   $ go build
 
 Usage:
@@ -78,6 +78,3 @@ would e.g. matches:
 
 The mandatory path is the path to the database file: map.sqlite in case
 of SQLite3 and the directory map.db in case of LevelDB right beside the world.mt file.
-
-This is Free Software under the terms of the MIT license. See LICENSE file for details.
-(c) 2014 by Sascha L. Teichmann