diff --git a/hgext/acl.py b/hgext/acl.py
--- a/hgext/acl.py
+++ b/hgext/acl.py
@@ -6,7 +6,7 @@
 # GNU General Public License version 2, incorporated herein by reference.
 #
 
-'''control access to a repository using simple hooks
+'''hooks for controlling repository access
 
 This hook makes it possible to allow or deny write access to portions
 of a repository when receiving incoming changesets.
diff --git a/hgext/bugzilla.py b/hgext/bugzilla.py
--- a/hgext/bugzilla.py
+++ b/hgext/bugzilla.py
@@ -5,7 +5,7 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2, incorporated herein by reference.
 
-'''integrate Mercurial with a Bugzilla bug tracker
+'''hooks for integrating with the Bugzilla bug tracker
 
 This hook extension adds comments on bugs in Bugzilla when changesets
 that refer to bugs by Bugzilla ID are seen. The hook does not change
diff --git a/hgext/hgcia.py b/hgext/hgcia.py
--- a/hgext/hgcia.py
+++ b/hgext/hgcia.py
@@ -1,7 +1,7 @@
 # Copyright (C) 2007-8 Brendan Cully <brendan@kublai.com>
 # Published under the GNU GPL
 
-"""integrate Mercurial with a CIA notification service
+"""hooks for integrating with the CIA.vc notification service
 
 This is meant to be run as a changegroup or incoming hook.
 To configure it, set the following options in your hgrc:
diff --git a/hgext/notify.py b/hgext/notify.py
--- a/hgext/notify.py
+++ b/hgext/notify.py
@@ -5,7 +5,7 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2, incorporated herein by reference.
 
-'''send e-mail notifications for commits/pushes
+'''hooks for sending email notifications at commit/push time
 
 Subscriptions can be managed through hgrc. Default mode is to print
 messages to stdout, for testing and configuring.
diff --git a/hgext/patchbomb.py b/hgext/patchbomb.py
--- a/hgext/patchbomb.py
+++ b/hgext/patchbomb.py
@@ -5,7 +5,7 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2, incorporated herein by reference.
 
-'''command to send changesets as (a series of) patch e-mails
+'''command to send changesets as (a series of) patch emails
 
 The series is started off with a "[PATCH 0 of N]" introduction, which
 describes the series as a whole.
diff --git a/tests/test-keyword.out b/tests/test-keyword.out
--- a/tests/test-keyword.out
+++ b/tests/test-keyword.out
@@ -57,7 +57,7 @@ enabled extensions:
 
  keyword   expand keywords in tracked files
  mq        manage a stack of patches
- notify    send e-mail notifications for commits/pushes
+ notify    hooks for sending email notifications at commit/push time
 
 use "hg -v help keyword" to show aliases and global options
 % hg kwdemo
diff --git a/tests/test-notify.out b/tests/test-notify.out
--- a/tests/test-notify.out
+++ b/tests/test-notify.out
@@ -1,4 +1,4 @@
-notify extension - send e-mail notifications for commits/pushes
+notify extension - hooks for sending email notifications at commit/push time
 
 Subscriptions can be managed through hgrc. Default mode is to print
 messages to stdout, for testing and configuring.