diff --git a/app/models/article.rb b/app/models/article.rb
index a7eefb8..9561876 100644
--- a/app/models/article.rb
+++ b/app/models/article.rb
@@ -1,4 +1,15 @@
 class Article < Comatose::Page
-end
-class Article < Comatose::Page
+  acts_as_taggable  
+  
+  def keywords
+    tag_list.to_s
+  end
+  
+  def keywords=(list_tag)
+    self.tag_list = list_tag
+  end
+
+  def has_keyword?(keyword)
+    tags.map{|t| t.name.downcase}.include?(keyword.downcase)
+  end
 end
--
libgit2 0.21.2