diff --git a/ddportfolioservice/controllers/ddportfolio.py b/ddportfolioservice/controllers/ddportfolio.py
index e6bbdb3..4af5597 100644
--- a/ddportfolioservice/controllers/ddportfolio.py
+++ b/ddportfolioservice/controllers/ddportfolio.py
@@ -37,6 +37,9 @@ log = logging.getLogger(__name__)
 
 
 class DdportfolioController(BaseController):
+    """
+    Main controller for the Debian Member portfolio service.
+    """
     _LABELS = {
         'overview': {
             'label': N_('Overview'),
diff --git a/ddportfolioservice/model/__init__.py b/ddportfolioservice/model/__init__.py
index f5029b6..a533c8d 100644
--- a/ddportfolioservice/model/__init__.py
+++ b/ddportfolioservice/model/__init__.py
@@ -20,3 +20,7 @@
 # License along with this program.  If not, see
 # <http://www.gnu.org/licenses/>.
 #
+"""
+Model classes and model related utilities for the Debian Member Portfolio
+service.
+"""
diff --git a/docs/index.rst b/docs/index.rst
index 28d90aa..aadf843 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -16,6 +16,7 @@ http://portfolio.debian.net/.
 .. toctree::
    :maxdepth: 2
 
+   sourcecode
    credits
 
 Indices and tables
diff --git a/docs/sourcecode.rst b/docs/sourcecode.rst
new file mode 100644
index 0000000..55cce3f
--- /dev/null
+++ b/docs/sourcecode.rst
@@ -0,0 +1,95 @@
+Source documentation
+====================
+
+The sections below contain mostly autogenerated documentation of the source
+code of the Debian Member Portfolio Service.
+
+Controllers
+-----------
+
+.. automodule:: ddportfolioservice.controllers
+   :members:
+
+ddportfolio controller
+~~~~~~~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.ddportfolio
+   :members:
+
+error controller
+~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.error
+   :members:
+
+showformscripts controller
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.showformscripts
+   :members:
+
+template controller
+~~~~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.template
+   :members:
+
+Library code
+------------
+
+.. automodule:: ddportfolioservice.lib
+   :members:
+
+app_globals
+~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.lib.app_globals
+   :members:
+
+base
+~~~~
+
+.. automodule:: ddportfolioservice.lib.base
+   :members:
+
+helpers
+~~~~~~~
+
+.. automodule:: ddportfolioservice.lib.helpers
+   :members:
+
+Model
+-----
+
+.. automodule:: ddportfolioservice.model
+   :members:
+
+dddatabuilder
+~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.dddatabuilder
+   :members:
+
+form
+~~~~
+
+.. automodule:: ddportfolioservice.model.form
+   :members:
+
+keyfinder
+~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.keyfinder
+   :members:
+
+keyringanalyzer
+~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.keyringanalyzer
+   :members:
+
+urlbuilder
+~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.urlbuilder
+   :members: