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app/helpers/application_helper.rb

@@ -6,4 +6,17 @@ module ApplicationHelper
     link +=  link_to( post.title , blog_post_url(post.slug))
     link.html_safe
   end
+
+
+  def ext_link(name = nil, options = nil, html_options = nil, &block)
+    target_blank = {target: "_blank"}
+    if block_given?
+      options ||= {}
+      options = options.merge(target_blank)
+    else
+      html_options ||= {}
+      html_options = html_options.merge(target_blank)
+    end
+    link_to(name, options, html_options, &block)
+  end
 end