diff --git a/actionpack/lib/action_controller/assertions.rb b/actionpack/lib/action_controller/assertions.rb
index 956e5da14051423851cb08de01183e7be3a57355..941201b3356a766cc5721d60da3e30303ba931b6 100644
--- a/actionpack/lib/action_controller/assertions.rb
+++ b/actionpack/lib/action_controller/assertions.rb
@@ -39,7 +39,7 @@ module ActionController #:nodoc:
   #
   # == Testing named routes
   #
-  # If you're using named routes, they can be easily tested using the original named routes methods straight in the test case.
+  # If you're using named routes, they can be easily tested using the original named routes' methods straight in the test case.
   # Example:
   #
   #  assert_redirected_to page_url(:title => 'foo')
diff --git a/actionpack/lib/action_controller/cookies.rb b/actionpack/lib/action_controller/cookies.rb
index d337491ecb306afaadf5239f722fa371a93bec0d..7990eab45eedf324114ed0ae19138dc1054b95ab 100644
--- a/actionpack/lib/action_controller/cookies.rb
+++ b/actionpack/lib/action_controller/cookies.rb
@@ -44,8 +44,8 @@ def initialize(controller)
       update(@cookies)
     end
 
-    # Returns the value of the cookie by +name+ -- or nil if no such cookie exists. You set new cookies using either the cookie method
-    # or cookies[]= (for simple name/value cookies without options).
+    # Returns the value of the cookie by +name+ -- or nil if no such cookie exists. You set new cookies using cookies[]=
+    # (for simple name/value cookies without options).
     def [](name)
       @cookies[name.to_s].value.first if @cookies[name.to_s] && @cookies[name.to_s].respond_to?(:value)
     end
diff --git a/actionpack/lib/action_controller/flash.rb b/actionpack/lib/action_controller/flash.rb
index ac38b46f68325ad495e5c845889b895134f472a9..314d32e9f586cbb0ebf89ece2e1792b00337252f 100644
--- a/actionpack/lib/action_controller/flash.rb
+++ b/actionpack/lib/action_controller/flash.rb
@@ -96,7 +96,7 @@ def keep(k = nil)
         use(k, false)
       end
     
-      # Marks the entire flash or a single flash entry to be discarded by the end of the current action
+      # Marks the entire flash or a single flash entry to be discarded by the end of the current action:
       #
       #     flash.discard              # discard the entire flash at the end of the current action
       #     flash.discard(:warning)    # discard only the "warning" entry at the end of the current action
diff --git a/actionpack/lib/action_controller/helpers.rb b/actionpack/lib/action_controller/helpers.rb
index 66a88fc07f2dd73ec8e53fafd7bf157aa8377830..b42bc8a555a64da172d655e5af732020adb1b06f 100644
--- a/actionpack/lib/action_controller/helpers.rb
+++ b/actionpack/lib/action_controller/helpers.rb
@@ -19,16 +19,16 @@ class << self
     end
 
     # The Rails framework provides a large number of helpers for working with +assets+, +dates+, +forms+, 
-    # +numbers+ and <tt>Active Record objects</tt>, to name a few.  These helpers are available to all templates
+    # +numbers+ and +ActiveRecord+ objects, to name a few. These helpers are available to all templates
     # by default.
     #
     # In addition to using the standard template helpers provided in the Rails framework, creating custom helpers to
     # extract complicated logic or reusable functionality is strongly encouraged.  By default, the controller will 
     # include a helper whose name matches that of the controller, e.g., <tt>MyController</tt> will automatically
-    # include <tt>MyHelper</tt>.  
+    # include <tt>MyHelper</tt>.
     # 
     # Additional helpers can be specified using the +helper+ class method in <tt>ActionController::Base</tt> or any
-    # controller which inherits from it.  
+    # controller which inherits from it.
     #
     # ==== Examples
     # The +to_s+ method from the +Time+ class can be wrapped in a helper method to display a custom message if 
@@ -88,7 +88,7 @@ def add_template_helper(helper_module) #:nodoc:
       #   helper FooHelper # => includes FooHelper
       #
       # When the argument is the symbol <tt>:all</tt>, the controller will includes all helpers from 
-      # <tt>app/views/helpers/**/*.rb</tt> under RAILS_ROOT
+      # <tt>app/views/helpers/**/*.rb</tt> under +RAILS_ROOT+.
       #   helper :all
       #
       # Additionally, the +helper+ class method can receive and evaluate a block, making the methods defined available 
@@ -102,7 +102,7 @@ def add_template_helper(helper_module) #:nodoc:
       #     end
       #   end
       # 
-      # Finally, all the above styles can be mixed together, and the helper method can be invokved with a mix of
+      # Finally, all the above styles can be mixed together, and the +helper+ method can be invokved with a mix of
       # +symbols+, +strings+, +modules+ and blocks.
       #   helper(:three, BlindHelper) { def mice() 'mice' end }
       #
@@ -139,14 +139,14 @@ def helper(*args, &block)
         master_helper_module.module_eval(&block) if block_given?
       end
 
-      # Declare a controller method as a helper.  For example,
+      # Declare a controller method as a helper. For example, the following
+      # makes the +current_user+ controller method available to the view:
       #   class ApplicationController < ActionController::Base
       #     helper_method :current_user
       #     def current_user
       #       @current_user ||= User.find(session[:user])
       #     end
       #   end
-      # makes the +current_user+ controller method available in the view.
       def helper_method(*methods)
         methods.flatten.each do |method|
           master_helper_module.module_eval <<-end_eval
@@ -157,11 +157,11 @@ def #{method}(*args, &block)
         end
       end
 
-      # Declare a controller attribute as a helper.  For example,
+      # Declares helper accessors for controller attributes. For example, the
+      # following adds new +name+ and <tt>name=</tt> instance methods to a
+      # controller and makes them available to the view:
       #   helper_attr :name
       #   attr_accessor :name
-      # makes the name and name= controller methods available in the view.
-      # The is a convenience wrapper for helper_method.
       def helper_attr(*attrs)
         attrs.flatten.each { |attr| helper_method(attr, "#{attr}=") }
       end
diff --git a/actionpack/lib/action_controller/integration.rb b/actionpack/lib/action_controller/integration.rb
index 1a5c8af69a3d9989d86d3e6c7611d05d0d65744a..2bff3a7ae0b8309ea5d08ff4ebc945a65a00285f 100644
--- a/actionpack/lib/action_controller/integration.rb
+++ b/actionpack/lib/action_controller/integration.rb
@@ -51,7 +51,7 @@ class Session
       # A reference to the response instance used by the last request.
       attr_reader :response
 
-      # Create an initialize a new Session instance.
+      # Create and initialize a new +Session+ instance.
       def initialize
         reset!
       end