diff --git a/plugins/relevant_content/lib/ext/article.rb b/plugins/relevant_content/lib/ext/article.rb
new file mode 100644
index 0000000..9a5e3d1
--- /dev/null
+++ b/plugins/relevant_content/lib/ext/article.rb
@@ -0,0 +1,194 @@
+require_dependency 'article'
+
+class Article
+  
+  named_scope :relevant_content, :conditions => ["(articles.type != 'UploadedFile' and articles.type != 'Blog' and articles.type != 'RssFeed') OR articles.type is NULL"]
+
+  def self.most_accessed(owner, limit = nil)
+    if owner.kind_of?(Environment) 
+      result = Article.relevant_content.find(
+        :all,
+        :order => 'hits desc',
+        :limit => limit,
+        :conditions => ["hits > 0"]                        
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    else
+      #Owner is a profile
+      result = Article.relevant_content.find(
+        :all,        
+        :order => 'hits desc',
+        :limit => limit,
+        :conditions => ["profile_id = ? and hits > 0", owner.id]                
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    end            
+  end
+
+  def self.most_commented_relevant_content(owner, limit)
+     
+    if owner.kind_of?(Environment) 
+      result = Article.relevant_content.find(
+        :all,
+        :order => 'comments_count desc',
+        :limit => limit,
+        :conditions => ["comments_count > 0"]                
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    else
+      #Owner is a profile
+      result = Article.relevant_content.find(
+        :all,        
+        :order => 'comments_count desc',
+        :limit => limit,
+        :conditions => ["profile_id = ? and comments_count > 0", owner.id]        
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    end    
+  end  
+    
+  def self.articles_columns
+    Article.column_names.map {|c| "articles.#{c}"} .join(",")
+  end
+  
+  def self.more_positive_votes(owner, limit = nil)
+    if owner.kind_of?(Environment) 
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'sum(vote) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :having => ['sum(vote) > 0'],                        
+        :conditions => {'votes.voteable_type' => 'Article'},        
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id'
+      )   
+      result.paginate({:page => 1, :per_page => limit})
+    else
+      #Owner is a profile
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'sum(vote) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :having => ['sum(vote) > 0'],                        
+        :conditions => ["profile_id = ? and votes.voteable_type = ? ", owner.id, 'Article']        
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    end
+  end
+  
+  def self.more_negative_votes(owner, limit = nil)
+    if owner.kind_of?(Environment) 
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'sum(vote) asc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :having => ['sum(vote) < 0'],                        
+        :conditions => {'votes.voteable_type' => 'Article'},
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id'        
+      )
+       result.paginate({:page => 1, :per_page => limit})
+    else
+      #Owner is a profile
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'sum(vote) asc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :having => ['sum(vote) < 0'],                        
+        :conditions => ["profile_id = ? and votes.voteable_type = 'Article' ", owner.id]            
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    end
+  end
+  
+  def self.most_liked(owner, limit = nil)
+    if owner.kind_of?(Environment) 
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'count(voteable_id) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :conditions => ["votes.voteable_type = 'Article' and vote > 0"]
+      )   
+      result.paginate({:page => 1, :per_page => limit})
+    else
+      #Owner is a profile
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'count(voteable_id) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :conditions => ["votes.voteable_type = 'Article' and vote > 0 and profile_id = ? ", owner.id]        
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    end
+  end
+  
+  def self.most_disliked(owner, limit = nil)
+    if owner.kind_of?(Environment) 
+      result = Article.find(
+        :all,
+        :order => 'count(voteable_id) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :conditions => ["votes.voteable_type = 'Article' and vote < 0"]             
+      )
+       result.paginate({:page => 1, :per_page => limit})
+    else
+      #Owner is a profile
+      result = Article.find(
+        :all,        
+        :order => 'count(voteable_id) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :conditions => ["votes.voteable_type = 'Article' and vote < 0 and profile_id = ? ", owner.id]        
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    end
+  end
+  
+  def self.most_voted(owner, limit = nil)
+    if owner.kind_of?(Environment) 
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'count(voteable_id) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :conditions => ["votes.voteable_type = 'Article'"]
+      )   
+      result.paginate({:page => 1, :per_page => limit})
+    else
+      #Owner is a profile
+      result = Article.find(
+        :all,
+        :select => articles_columns,        
+        :order => 'count(voteable_id) desc',
+        :group => 'voteable_id, ' + articles_columns,
+        :limit => limit,
+        :joins => 'INNER JOIN votes ON articles.id = votes.voteable_id',
+        :conditions => ["votes.voteable_type = 'Article' and profile_id = ? ", owner.id]        
+      )
+      result.paginate({:page => 1, :per_page => limit})
+    end
+  end
+  
+  
+  
+  
+end 
\ No newline at end of file
diff --git a/plugins/relevant_content/lib/relevant_content_plugin.rb b/plugins/relevant_content/lib/relevant_content_plugin.rb
new file mode 100644
index 0000000..012766c
--- /dev/null
+++ b/plugins/relevant_content/lib/relevant_content_plugin.rb
@@ -0,0 +1,21 @@
+class RelevantContentPlugin < Noosfero::Plugin
+    
+  def self.plugin_name
+      "Relevant Content Plugin"
+  end
+
+  def self.plugin_description
+    _("A plugin that lists the most accessed, most commented, most liked and most disliked contents.")
+  end
+
+  def self.extra_blocks
+    {
+     RelevantContentPlugin::RelevantContentBlock => {:position => ['1','2','3'] }
+    }
+  end
+
+  def stylesheet?
+    true
+  end  
+
+end
diff --git a/plugins/relevant_content/lib/relevant_content_plugin/relevant_content_block.rb b/plugins/relevant_content/lib/relevant_content_plugin/relevant_content_block.rb
new file mode 100644
index 0000000..b076e56
--- /dev/null
+++ b/plugins/relevant_content/lib/relevant_content_plugin/relevant_content_block.rb
@@ -0,0 +1,93 @@
+class RelevantContentPlugin::RelevantContentBlock < Block
+  def self.description
+    _('Relevant content')
+  end
+
+  def default_title
+      _('Relevant content')
+  end
+
+  def help
+    _('This block lists the most popular content.')
+  end
+
+  settings_items :limit,                :type => :integer, :default => 5
+  settings_items :show_most_read,       :type => :integer, :default => 1  
+  settings_items :show_most_commented,  :type => :integer, :default => 1    
+  settings_items :show_most_liked,      :type => :integer, :default => 1    
+  settings_items :show_most_disliked,   :type => :integer, :default => 0      
+  settings_items :show_most_voted,      :type => :integer, :default => 1        
+
+  include ActionController::UrlWriter
+  def content(args={})
+
+    content = block_title(title)     
+    
+    if self.show_most_read != 0
+      docs = Article.most_accessed(owner, self.limit)        
+      if !docs.blank? 
+        subcontent = ""
+        subcontent += content_tag(:span, _("Most read articles"), :class=>"title mread") + "\n"       
+        subcontent += content_tag(:ul, docs.map {|item| content_tag('li', link_to(h(item.title), item.url))}.join("\n")) 
+        content += content_tag(:div, subcontent, :class=>"block mread") + "\n"       
+      end  
+    end
+
+    if self.show_most_commented != 0
+      docs = Article.most_commented_relevant_content(owner, self.limit)
+      if !docs.blank?  
+        subcontent = ""        
+        subcontent += content_tag(:span, _("Most commented articles"), :class=>"title mcommented") + "\n"       
+        subcontent += content_tag(:ul, docs.map {|item| content_tag('li', link_to(h(item.title), item.url))}.join("\n")) 
+        content += content_tag(:div, subcontent, :class=>"block mcommented") + "\n"
+      end
+    end
+
+    if owner.kind_of?(Environment) 
+      env = owner
+    else
+      env =  owner.environment
+    end
+    
+    if env.plugin_enabled?(VotePlugin)
+      if self.show_most_liked != 0
+        docs = Article.more_positive_votes(owner, self.limit)
+        if !docs.blank? 
+          subcontent = ""  
+          subcontent += content_tag(:span, _("Most liked articles"), :class=>"title mliked") + "\n"  
+          subcontent += content_tag(:ul, docs.map {|item| content_tag('li', link_to(h(item.title), item.url))}.join("\n")) 
+          content += content_tag(:div, subcontent, :class=>"block mliked") + "\n"
+        end
+      end
+      if self.show_most_disliked != 0
+        docs = Article.more_negative_votes(owner, self.limit)
+        if !docs.blank? 
+          subcontent = "" 
+          subcontent += content_tag(:span, _("Most disliked articles"), :class=>"title mdisliked") + "\n"  
+          subcontent += content_tag(:ul, docs.map {|item| content_tag('li', link_to(h(item.title), item.url))}.join("\n")) 
+          content += content_tag(:div, subcontent, :class=>"block mdisliked") + "\n"          
+        end
+      end
+      
+      if self.show_most_voted != 0
+        docs = Article.most_voted(owner, self.limit)
+        if !docs.blank? 
+          subcontent = ""
+          subcontent += content_tag(:span, _("Most voted articles"), :class=>"title mvoted") + "\n"  
+          subcontent += content_tag(:ul, docs.map {|item| content_tag('li', link_to(h(item.title), item.url))}.join("\n")) 
+          content += content_tag(:div, subcontent, :class=>"block mvoted") + "\n"            
+        end
+      end      
+    end
+    return content
+  end 
+ 
+  def timeout
+    4.hours
+  end  
+  
+  def self.expire_on
+      { :profile => [:article], :environment => [:article] }
+  end
+
+end
\ No newline at end of file
diff --git a/plugins/relevant_content/public/style.css b/plugins/relevant_content/public/style.css
new file mode 100644
index 0000000..b0327fc
--- /dev/null
+++ b/plugins/relevant_content/public/style.css
@@ -0,0 +1,79 @@
+#content .relevant-content-plugin_relevant-content-block  {
+  padding: 10px 0px 10px 10px;
+  word-wrap: break-word;
+}
+
+.relevant-content-plugin_relevant-content-block ul {
+  margin: 0px;
+  padding: 0px 0px 0px 20px;
+}
+.relevant-content-plugin_relevant-content-block li {
+  margin: 0px;
+  padding: 0px;
+  list-style: none
+}
+.relevant-content-plugin_relevant-content-block a {
+  text-decoration: none;
+}
+.relevant-content-plugin_relevant-content-block .block-footer-content {
+  font-size: 10px;
+}
+.relevant-content-plugin_relevant-content-block .block-footer-content a:hover {
+  text-decoration: underline;
+}
+
+.relevant-content-plugin_relevant-content-block p {
+    text-align:center;
+}
+
+.relevant-content-plugin_relevant-content-block  p.like{
+  background-image: url('images/positive-hand.png');
+  background-repeat: no-repeat;
+  min-width: 50px;
+  text-align:center;
+}
+
+.relevant-content-plugin_relevant-content-block  p.dislike{
+  background-image: url('images/negative-hand.png');
+  background-repeat: no-repeat;
+  min-width: 50px;
+  text-align:center;
+}
+
+
+.relevant-content-plugin_relevant-content-block {
+  //overflow: hidden;
+  display: block;
+  width: 100%;
+}
+
+
+.relevant-content-cover img {
+  width: 100%;
+}
+
+.relevant-content-plugin_relevant-content-block span.title {
+  display: block;
+  margin: 20px 0px 0px;
+  padding: 0px 0px 0px 20px;
+}
+
+.relevant-content-plugin_relevant-content-block span.title.mread {
+
+}
+
+.relevant-content-plugin_relevant-content-block span.title.mcommented {
+
+}
+
+.relevant-content-plugin_relevant-content-block span.title.mliked {
+
+}
+
+.relevant-content-plugin_relevant-content-block span.title.mdisliked {
+
+}
+
+.relevant-content-plugin_relevant-content-block span.title.mvoted {
+
+}
diff --git a/plugins/relevant_content/test/test_helper.rb b/plugins/relevant_content/test/test_helper.rb
new file mode 100644
index 0000000..cca1fd3
--- /dev/null
+++ b/plugins/relevant_content/test/test_helper.rb
@@ -0,0 +1 @@
+require File.dirname(__FILE__) + '/../../../test/test_helper'
diff --git a/plugins/relevant_content/test/unit/relevant_content_block_test.rb b/plugins/relevant_content/test/unit/relevant_content_block_test.rb
new file mode 100644
index 0000000..94adef4
--- /dev/null
+++ b/plugins/relevant_content/test/unit/relevant_content_block_test.rb
@@ -0,0 +1,217 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+require 'comment_controller'
+# Re-raise errors caught by the controller.
+class CommentController; def rescue_action(e) raise e end; end
+
+class RelevantContentBlockTest < ActiveSupport::TestCase
+  
+  include AuthenticatedTestHelper
+  fixtures :users, :environments
+  
+  def setup
+    @controller = CommentController.new
+    @request    = ActionController::TestRequest.new
+    @response   = ActionController::TestResponse.new
+
+    @profile = create_user('testinguser').person
+    @environment = @profile.environment
+  end
+  attr_reader :profile, :environment
+  
+  
+ 
+  should 'have a default title' do
+    relevant_content_block = RelevantContentPlugin::RelevantContentBlock.new
+    block = Block.new
+    assert_not_equal block.default_title, relevant_content_block.default_title
+  end
+  
+  should 'have a help tooltip' do
+    relevant_content_block = RelevantContentPlugin::RelevantContentBlock.new
+    block = Block.new
+    assert_not_equal "", relevant_content_block.help
+  end
+
+  should 'describe itself' do
+    assert_not_equal Block.description, RelevantContentPlugin::RelevantContentBlock.description
+  end
+ 
+  should 'is editable' do
+    block = RelevantContentPlugin::RelevantContentBlock.new
+    assert block.editable?
+  end
+
+  should 'expire' do
+    assert_equal RelevantContentPlugin::RelevantContentBlock.expire_on, {:environment=>[:article], :profile=>[:article]}
+  end
+
+  should 'not raise an exception when finding the most accessed content' do
+    assert_nothing_raised{
+      Article.most_accessed(Environment.default, 5)
+    }
+  end
+  
+  should 'not raise an exception when finding the most commented content' do
+    assert_nothing_raised{
+      Article.most_commented_relevant_content(Environment.default, 5)
+    }
+  end
+ 
+  should 'not raise an exception when finding the most liked content' do
+    begin 
+      Environment.default.enable_plugin(:vote)
+    rescue
+      puts "Unable to activate vote plugin"      
+    end  
+    if Environment.default.plugin_enabled?(:vote)
+      assert_nothing_raised{
+        Article.most_liked(Environment.default, 5)
+      }
+    end
+  end
+
+  should 'not raise an exception when finding the most disliked content' do
+    begin 
+      Environment.default.enable_plugin(:vote)
+    rescue
+      puts "Unable to activate vote plugin"
+    end  
+    if Environment.default.plugin_enabled?(:vote)
+      assert_nothing_raised{
+        Article.most_disliked(Environment.default, 5)
+      }
+    end
+  end
+
+ 
+  should 'not raise an exception when finding the more positive votes' do
+    begin 
+      Environment.default.enable_plugin(:vote)
+    rescue
+      puts "Unable to activate vote plugin"      
+    end  
+    if Environment.default.plugin_enabled?(:vote)
+      assert_nothing_raised{
+        Article.more_positive_votes(Environment.default, 5)
+      }
+    end
+  end
+
+  should 'not raise an exception when finding the most voted' do
+    begin 
+      Environment.default.enable_plugin(:vote)
+    rescue
+      puts "Unable to activate vote plugin"
+    end  
+    if Environment.default.plugin_enabled?(:vote)
+      assert_nothing_raised{
+        Article.most_voted(Environment.default, 5)
+      }
+    end
+  end
+  
+  should 'find the most voted' do
+
+    article = fast_create(Article, {:name=>'2 votes'})
+    for i in 0..2
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    
+    article = fast_create(Article, {:name=>'10 votes'})
+    for i in 0..10
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    
+    article = fast_create(Article, {:name=>'5 votes'})
+    for i in 0..5
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    
+    articles = Article.most_voted(Environment.default, 5)
+    assert_equal '10 votes', articles.first.name
+    assert_equal '2 votes', articles.last.name
+  end
+
+  should 'list the most postive' do
+
+    article = fast_create(Article, {:name=>'23 votes for 20 votes against'})
+    for i in 0..20
+        person = fast_create(Person)
+        person.vote_against(article)
+    end
+    for i in 0..23
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    
+    article = fast_create(Article, {:name=>'10 votes for 5 votes against'})
+    for i in 0..10
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    for i in 0..5
+        person = fast_create(Person)
+        person.vote_against(article)
+    end
+    
+    article = fast_create(Article, {:name=>'2 votes against'})
+    for i in 0..2
+        person = fast_create(Person)
+        person.vote_against(article)
+    end
+
+    article = fast_create(Article, {:name=>'7 votes for'})
+    for i in 0..7
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    
+    articles = Article.more_positive_votes(Environment.default, 5)
+    assert_equal '7 votes for', articles.first.name
+    assert_equal '23 votes for 20 votes against', articles.last.name
+  end
+  
+  should 'list the most negative' do
+
+    article = fast_create(Article, {:name=>'23 votes for 29 votes against'})
+    for i in 0..29
+        person = fast_create(Person)
+        person.vote_against(article)
+    end
+    for i in 0..23
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    
+    article = fast_create(Article, {:name=>'10 votes for 15 votes against'})
+    for i in 0..10
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    for i in 0..15
+        person = fast_create(Person)
+        person.vote_against(article)
+    end
+    
+    article = fast_create(Article, {:name=>'2 votes against'})
+    for i in 0..2
+        person = fast_create(Person)
+        person.vote_against(article)
+    end
+
+    article = fast_create(Article, {:name=>'7 votes for'})
+    for i in 0..7
+        person = fast_create(Person)
+        person.vote_for(article)
+    end
+    
+    articles = Article.more_negative_votes(Environment.default, 5)
+    assert_equal '23 votes for 29 votes against', articles.first.name
+    assert_equal '2 votes against', articles.last.name
+  end
+  
+end
diff --git a/plugins/relevant_content/test/unit/relevant_content_plugin_test.rb b/plugins/relevant_content/test/unit/relevant_content_plugin_test.rb
new file mode 100644
index 0000000..434b948
--- /dev/null
+++ b/plugins/relevant_content/test/unit/relevant_content_plugin_test.rb
@@ -0,0 +1,29 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class RelevantContentPluginTest < ActiveSupport::TestCase
+
+  def setup
+    @plugin = RelevantContentPlugin.new
+  end
+
+  should 'be a noosfero plugin' do
+    assert_kind_of Noosfero::Plugin, @plugin
+  end
+
+  should 'have name' do
+    assert_equal 'Relevant Content Plugin', RelevantContentPlugin.plugin_name
+  end
+
+  should 'have description' do
+    assert_equal  _("A plugin that lists the most accessed, most commented, most liked and most disliked contents."), RelevantContentPlugin.plugin_description
+  end
+
+  should 'have stylesheet' do
+    assert @plugin.stylesheet?
+  end
+
+  should "return RelevantContentBlock in extra_blocks class method" do
+    assert  RelevantContentPlugin.extra_blocks.keys.include?(RelevantContentPlugin::RelevantContentBlock)
+  end
+
+end
diff --git a/plugins/relevant_content/views/box_organizer/relevant_content_plugin/_relevant_content_block.rhtml b/plugins/relevant_content/views/box_organizer/relevant_content_plugin/_relevant_content_block.rhtml
new file mode 100644
index 0000000..b458b1a
--- /dev/null
+++ b/plugins/relevant_content/views/box_organizer/relevant_content_plugin/_relevant_content_block.rhtml
@@ -0,0 +1,12 @@
+<div id='edit-relevant-content-block'>
+  <%= labelled_form_field _('Limit of items per category'), text_field(:block, :limit, :size => 3) %>  
+  <%= labelled_check_box _('Display most accessed content'), "block[show_most_read]", 1 ,@block.show_most_read != 0 %><BR>
+  <%= labelled_check_box _('Display most commented content'), "block[show_most_commented]", 1 ,@block.show_most_commented != 0 %><BR>
+  <%= labelled_check_box _('Display most liked content'), "block[show_most_liked]", 1 ,@block.show_most_liked != 0 %><BR>  
+  <%= labelled_check_box _('Display most voted content'), "block[show_most_voted]", 1 ,@block.show_most_voted != 0 %><BR>      
+  <%= labelled_check_box _('Display most disliked content'), "block[show_most_disliked]", 1 , @block.show_most_disliked != 0 %><BR>    
+</div>
+
+
+  
+
diff --git a/plugins/relevant_content/views/environment_design/relevant_content_plugin b/plugins/relevant_content/views/environment_design/relevant_content_plugin
new file mode 120000
index 0000000..85f0ab7
--- /dev/null
+++ b/plugins/relevant_content/views/environment_design/relevant_content_plugin
@@ -0,0 +1 @@
+../box_organizer/relevant_content_plugin
\ No newline at end of file
diff --git a/plugins/relevant_content/views/profile_design/relevant_content_plugin b/plugins/relevant_content/views/profile_design/relevant_content_plugin
new file mode 120000
index 0000000..85f0ab7
--- /dev/null
+++ b/plugins/relevant_content/views/profile_design/relevant_content_plugin
@@ -0,0 +1 @@
+../box_organizer/relevant_content_plugin
\ No newline at end of file
--
libgit2 0.21.2