diff --git a/app/models/blog.rb b/app/models/blog.rb
index 38ab37a..7a8eabd 100644
--- a/app/models/blog.rb
+++ b/app/models/blog.rb
@@ -72,4 +72,8 @@ class Blog < Folder
 
   alias :display_posts_in_current_language? :display_posts_in_current_language
 
+  def empty?
+    posts.compact.empty?
+  end
+
 end
diff --git a/app/sweepers/profile_sweeper.rb b/app/sweepers/profile_sweeper.rb
index c83f02c..926d36a 100644
--- a/app/sweepers/profile_sweeper.rb
+++ b/app/sweepers/profile_sweeper.rb
@@ -25,10 +25,23 @@ protected
     profile.blocks.each do |block|
       expire_timeout_fragment(block.cache_key)
     end
+
+    expire_blogs(profile) if profile.organization?
   end
 
   def expire_statistics_block_cache(profile)
     blocks = profile.environment.blocks.select { |b| b.kind_of?(EnvironmentStatisticsBlock) }
     blocks.map(&:cache_key).each{|ck|expire_timeout_fragment(ck)}
   end
+
+  def expire_blogs(profile)
+    profile.blogs.select{|b| !b.empty?}.each do |blog|
+      pages = blog.posts.count / blog.posts_per_page + 1
+      ([nil] + (1..pages).to_a).each do |i|
+        expire_timeout_fragment(blog.cache_key({:npage => i}))
+        expire_timeout_fragment(blog.cache_key({:npage => i}, profile))
+      end
+    end
+  end
+
 end
diff --git a/app/views/content_viewer/blog_page.rhtml b/app/views/content_viewer/blog_page.rhtml
index a18022c..4eba287 100644
--- a/app/views/content_viewer/blog_page.rhtml
+++ b/app/views/content_viewer/blog_page.rhtml
@@ -9,5 +9,5 @@
 </div>
 <hr class="pre-posts"/>
 <div class="blog-posts">
-  <%= (@posts.compact.empty? ? content_tag('em', _('(no posts)')) : list_posts(@posts, @page.visualization_format)) %>
+  <%= (@page.empty? ? content_tag('em', _('(no posts)')) : list_posts(@posts, @page.visualization_format)) %>
 </div>
diff --git a/test/unit/blog_test.rb b/test/unit/blog_test.rb
index fab6738..1e17513 100644
--- a/test/unit/blog_test.rb
+++ b/test/unit/blog_test.rb
@@ -211,4 +211,11 @@ class BlogTest < ActiveSupport::TestCase
     assert !folder.accept_uploads?
   end
 
+  should 'know when blog has or when has no posts' do
+    blog = fast_create(Blog)
+    assert blog.empty?
+    fast_create(TextileArticle, :parent_id => blog.id)
+    assert ! blog.empty?
+  end
+
 end
--
libgit2 0.21.2