diff --git a/doc/mainpage.py b/doc/mainpage.py
index c533379..5adcb6e 100644
--- a/doc/mainpage.py
+++ b/doc/mainpage.py
@@ -7,30 +7,32 @@
 # events include the initial connection from a MTA, the envelope sender and
 # recipients, the top level mail headers, and the message body.  There are
 # options to mangle all of these components of the message as it passes through
-# the milter.
+# the %milter.
 # 
 # At the next level, the <code>Milter</code> module (note the case difference)
 # provides a Python friendly object oriented wrapper for the low level API.  To
 # use the Milter module, an application registers a 'factory' to create an
 # object for each connection from a MTA to sendmail.  These connection objects
-# must provide methods corresponding to the libmilter callback events.
+# must provide methods corresponding to the libmilter event callbacks.
 # 
-# Each event method returns a code to tell sendmail whether to proceed with
+# Each callback method returns a code to tell sendmail whether to proceed with
 # processing the message.  This is a big advantage of milters over other mail
 # filtering systems.  Unwanted mail can be stopped in its tracks at the
-# earliest possible point.
+# earliest possible point.  The callback return codes are
+# milter.CONTINUE, milter.REJECT, milter.DISCARD, milter.ACCEPT, 
+# milter.TEMPFAIL, milter.SKIP, milter.NOREPLY.
 # 
-# The <code>Milter.Base</code> class provides default implementations for
+# The Milter.Base class provides default implementations for
 # event methods that do nothing, and also provides wrappers for the libmilter
 # methods to mutate the message.  It automatically negotiates with MTA
-# which protocol steps need to be processed by the milter, based on
+# which protocol steps need to be processed by the %milter, based on
 # which callback methods are overridden.
 #
-# The <code>Milter.Milter</code> class provides an alternate default
-# implementation that logs the main milter events, but otherwise does nothing.
-# It is provided for compatibility.
+# The Milter.Milter class provides an alternate default
+# implementation that logs the main milter callbacks, but otherwise does
+# nothing.  It is provided for compatibility.
 # 
-# The <code>mime</code> module provides a wrapper for the Python email package
+# The mime module provides a wrapper for the Python email package
 # that fixes some bugs, and simplifies modifying selected parts of a MIME
 # message.
 #
@@ -50,4 +52,5 @@
 # You may find the
 # <a href="http://docs.python.org/release/2.6.6/library/multiprocessing.html">
 # multiprocessing</a> module useful.  It can be a drop-in
-# replacement for threading as illustrated in milter-template.
+# replacement for threading as illustrated in 
+# <a href="milter-template_8py-example.html">milter-template.py</a>.
diff --git a/doc/milter.py b/doc/milter.py
index 528baae..9954067 100644
--- a/doc/milter.py
+++ b/doc/milter.py
@@ -3,7 +3,10 @@
 
 ## @package milter
 #
-# A thin wrapper around libmilter.
+# A thin wrapper around libmilter.  Most users will not import
+# milter directly, but will instead import Milter and subclass
+# Milter.Base.  This module gives you ultimate low level control
+# from python.
 #
 
 ## Continue processing the current connection, message, or recipient.
@@ -169,6 +172,16 @@ def set_exception_policy(code): pass
 #       xxfi_data</a> callback, called when the DATA
 #       SMTP command is received.
 def register(name,negotiate=None,unknown=None,data=None): pass
+
+## Attempt to create the socket used to communicate with the MTA.
+# milter.opensocket() attempts to create the socket specified previously by a
+# call to milter.setconn() which will be the interface between MTAs and the
+# %milter.  This allows the calling application to ensure that the socket can be
+# created.  If this is not called, milter.main() will do so implicitly.
+# Calls <a href="https://www.milter.org/developers/api/smfi_opensocket">
+# smfi_opensocket</a>.  While not documented for libmilter, my experiments
+# indicate that you must call register() before calling opensocket().
+# @param rmsock Try to remove an existing unix domain socket if true.
 def opensocket(rmsock): pass
 
 ## Transfer control to libmilter.
@@ -199,12 +212,17 @@ def setbacklog(n): pass
 # unix, inet, or inet6 socket. By default, a unix domain socket
 # is used.  It must not exist,
 # and sendmail will throw warnings if, eg, the file is under a
-# group or world writable directory.
+# group or world writable directory.  milter.setconn() will not fail with
+# an invalid socket - this will be detected only when calling milter.main()
+# or milter.opensocket().
+# @param s the socket address in proto:address format
 # <pre>
-# setconn('unix:/var/run/pythonfilter')
-# setconn('inet:8800') 			# listen on ANY interface
-# setconn('inet:7871@@publichost')	# listen on a specific interface
-# setconn('inet6:8020')
+# milter.setconn('unix:/var/run/pythonfilter')  # a named pipe
+# milter.setconn('local:/var/run/pythonfilter') # a named pipe
+# milter.setconn('inet:8800') 			# listen on ANY interface
+# milter.setconn('inet:7871@@publichost')	# listen on a specific interface
+# milter.setconn('inet6:8020')
+# milter.setconn('inet6:8020@[2001:db8:1234::1]')      # listen on specific IP
 # </pre>
 def setconn(s): pass