diff --git a/INSTALL b/INSTALL
index 0c44f75ad24982e465a43619c5b593c3ae05a69d..191015f27d62a1ca44f046a89dbfafe2d7095736 100644
--- a/INSTALL
+++ b/INSTALL
@@ -50,6 +50,30 @@ packages, except for DRBD and Xen::
                     python-pyparsing python-simplejson \
                     python-pyinotify python-pycurl socat
 
+If you want to also enable the `htools` components, which is recommended
+on bigger deployments (they give you automatic instance placement,
+cluster balancing, etc.), then you need to have a Haskell compiler
+installed. More specifically:
+
+- `GHC <http://www.haskell.org/ghc/>`_ version 6.10 or higher
+- or even better, `The Haskell Platform
+  <http://hackage.haskell.org/platform/>`_ which gives you a simple way
+  to bootstrap Haskell
+- `json <http://hackage.haskell.org/package/json>`_, a JSON library
+- `network <http://hackage.haskell.org/package/network>`_, a basic
+  network library
+- `parallel <http://hackage.haskell.org/package/parallel>`_, version 1.x
+  or 2.x, a parallel programming library (note: version 3.x is not yet
+  supported)
+- `curl <http://hackage.haskell.org/package/curl>`_, bindings for the
+  curl library, only needed if you want these tools to connect to remote
+  clusters (as opposed to the local one)
+
+All of these are also available as package in Debian/Ubuntu::
+
+  $ apt-get install ghc6 libghc6-json-dev libghc6-network-dev \
+                    libghc6-parallel-dev libghc6-curl-dev
+
 If you want to build from source, please see doc/devnotes.rst for more
 dependencies.
 
diff --git a/doc/devnotes.rst b/doc/devnotes.rst
index 8b58ed7d2e5a3d668419a8fa824f360cd7a907fc..1982ab40b4977d32541a845ad9a179d9169bba8e 100644
--- a/doc/devnotes.rst
+++ b/doc/devnotes.rst
@@ -4,7 +4,7 @@ Developer notes
 Build dependencies
 ------------------
 
-Most dependencies from :doc:`install-quick`, plus:
+Most dependencies from :doc:`install-quick`, plus (for Python):
 
 - `GNU make <http://www.gnu.org/software/make/>`_
 - `GNU tar <http://www.gnu.org/software/tar/>`_
@@ -14,10 +14,32 @@ Most dependencies from :doc:`install-quick`, plus:
   (tested with version 0.6.1)
 - `graphviz <http://www.graphviz.org/>`_
 - the `en_US.UTF-8` locale must be enabled on the system
+- `pylint <http://www.logilab.org/857>`_ and its associated
+  dependencies
+
+Note that for pylint, at the current moment the following versions
+need to be used::
+
+    $ pylint --version
+    pylint 0.21.1,
+    astng 0.20.1, common 0.50.3
 
 To generate unittest coverage reports (``make coverage``), `coverage
 <http://pypi.python.org/pypi/coverage>`_ needs to be installed.
 
+For Haskell development, again all things from the quick install
+document, plus:
+
+- `haddock <http://www.haskell.org/haddock/>`_, documentation
+  generator (equivalent to epydoc for Python)
+- `HsColour <http://hackage.haskell.org/package/hscolour>`_, again
+  used for documentation (it's source-code pretty-printing)
+- `hlint <http://community.haskell.org/~ndm/hlint/>`_, a source code
+  linter (equivalent to pylint for Python)
+- the `QuickCheck <http://hackage.haskell.org/package/QuickCheck>`_
+  library, version 1.x
+- ``hpc``, which comes with the compiler, so you should already have it
+
 
 Configuring for development
 ---------------------------
@@ -47,7 +69,7 @@ before use.
 
 This script, in the source code as ``daemons/daemon-util.in``, is used
 to start/stop Ganeti and do a few other things related to system
-daemons. Is is recommended to use ``daemon-util`` also from the system's
+daemons. It is recommended to use ``daemon-util`` also from the system's
 init scripts. That way the code starting and stopping daemons is shared
 and future changes have to be made in only one place.