diff --git a/addons/membership/__terp__.py b/addons/membership/__terp__.py
index a40c92eab5a..48f5fe7da29 100644
--- a/addons/membership/__terp__.py
+++ b/addons/membership/__terp__.py
@@ -31,6 +31,18 @@
         #"demo_data.xml",
         "membership_demo.xml"
         ],
+    "description": """
+This module allows you to manage all operations for managing memberships.
+It supports different kind of members:
+* Free member
+* Associated member (ex: a group subscribe for a membership for all
+  subsidiaries)
+* Paid members,
+* Special member prices, ...
+
+It is integrated with sales and accounting to allow you to automatically
+invoice and send propositions for membership renewal.
+    """,
     "init_xml" : [
         "membership_data.xml",
         ],
diff --git a/addons/mrp_subproduct/__terp__.py b/addons/mrp_subproduct/__terp__.py
index fbdd19a45f8..14b0152d532 100644
--- a/addons/mrp_subproduct/__terp__.py
+++ b/addons/mrp_subproduct/__terp__.py
@@ -27,6 +27,14 @@
     "depends" : ["base","mrp"],
     "category" : "Generic Modules/Production",
     "init_xml" : [],
+    "description": """
+This module allows you to produce several products from one production order.
+You can configure sub-products in the bill of material.
+Without this module:
+    A + B + C -> D
+With this module:
+    A + B + C -> D + E
+    """,
     "demo_xml" : [],
     "update_xml" : [
         "mrp_subproduct_view.xml",
diff --git a/addons/product_margin/__terp__.py b/addons/product_margin/__terp__.py
index a5d7e5cc4c9..89021c66c10 100644
--- a/addons/product_margin/__terp__.py
+++ b/addons/product_margin/__terp__.py
@@ -24,6 +24,11 @@
     "version":"1.0",
     "author":"Tiny",
     "category":"Custom",
+    "description": """
+Adds a reporting menu in products that computes sales, purchases, margins
+and others interresting indicators based on invoices. The wizard to launch
+the report has several options to help you get the data you need.
+""",
     "depends":["base","product","account"],
     "demo_xml":[],
     "update_xml":["product_margin_view.xml"],
diff --git a/addons/project_gtd/__terp__.py b/addons/project_gtd/__terp__.py
index 105289b7469..19c3190e924 100644
--- a/addons/project_gtd/__terp__.py
+++ b/addons/project_gtd/__terp__.py
@@ -25,7 +25,19 @@
     "author" : "Tiny",
     "category" : "Generic Modules/Projects & Services",
     "depends" : ["project"],
-    "description": "",
+    "description": """
+This module implements all concepts defined by the Getting Things Done
+methodology. This world-wide used methodology is used for personnal
+time management improvement.
+
+Getting Things Done (commonly abbreviated as GTD) is an action management
+method created by David Allen, and described in a book of the same name.
+
+GTD rests on the principle that a person needs to move tasks out of the mind by
+recording them externally. That way, the mind is freed from the job of
+remembering everything that needs to be done, and can concentrate on actually
+performing those tasks.
+    """,
     "init_xml" : [],
     "demo_xml" : ["project_gtd_demo.xml"],
     "update_xml": [