diff --git a/app/helpers/users_helper.rb b/app/helpers/users_helper.rb
index 2310a24..bff799c 100644
--- a/app/helpers/users_helper.rb
+++ b/app/helpers/users_helper.rb
@@ -1,2 +1,10 @@
 module UsersHelper
-end
+  def user_gravatar(user, options = {})
+    options = {:alt => 'avatar', :class => 'avatar', :size => 80}.merge! options
+    id = Digest::MD5::hexdigest(user.email.strip.downcase)
+    url = 'http://www.gravatar.com/avatar/' + id + '.jpg?s=' + options[:size].to_s
+    options.delete :size
+
+    image_tag(url, options)
+  end
+end
\ No newline at end of file