diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 247d68c..1e55a34 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -21,7 +21,7 @@ class UsersController < ApplicationController
 	before_filter :require_admin, :only => [ :edit, :update, :destroy ]
 
 	def index
-		@users = User.paginate(:page => params[:page], :per_page => 20, :order => 'last_seen')
+		@users = User.paginate(:page => params[:page], :per_page => 20, :order => 'last_seen desc')
 
 		respond_to do |format|
 			format.html
diff --git a/app/views/layouts/wiki.html.haml b/app/views/layouts/wiki.html.haml
index 74e5cac..3f7c915 100644
--- a/app/views/layouts/wiki.html.haml
+++ b/app/views/layouts/wiki.html.haml
@@ -4,7 +4,7 @@
   = link_to("Disciplinas", courses_url) + "&rsaquo;"
   = link_to(h(@course.full_name), course_url(@course)) + "&rsaquo;"
   = link_to("Wiki", course_wiki_url(@course))
-  - if @wiki_page.title
+  - if @wiki_page.title?
     = "&rsaquo;" + link_to(h(@wiki_page.title), course_wiki_instance_url(@course, @wiki_page))
     - @title = @title + " - #{h(@wiki_page.title)}"
 
diff --git a/app/views/wiki/_form.html.haml b/app/views/wiki/_form.html.haml
index abb2063..e1aff7f 100644
--- a/app/views/wiki/_form.html.haml
+++ b/app/views/wiki/_form.html.haml
@@ -16,4 +16,4 @@
       %label{:for => 'wiki_page_description'} Descrição das alterações
     %dd= text_field('wiki_page', 'description', { :size => '80' })
 
-    %dt= check_box('wiki_page', 'front_page') + " Exibir página wiki na página inicial do curso"
+  %dt= check_box('wiki_page', 'front_page') + " Exibir página wiki na página inicial do curso"
diff --git a/doc/access_keys.txt b/doc/access_keys.txt
new file mode 100644
index 0000000..6d89885
--- /dev/null
+++ b/doc/access_keys.txt
@@ -0,0 +1,23 @@
+navegacao
+	z	pagina principal
+	d	disciplina
+	a	arquivos
+	c	calendario
+	n	noticias
+	p	participantes
+	w	paginas wiki
+	r	mudancas recentes
+	.	dashboard
+	,	perfil publico
+	s	configuracoes
+	l	login/logout
+
+acoes
+	+	adicionar
+	-	excluir
+	e	editar, salvar
+	h	historico
+	s	salvar
+	v	visualizar
+	u	undo
+