!RSS Auto Discovery
[RSS Auto Discovery - Google ¸¡º÷|http://www.google.com/search?lr=&ie=UTF-8&oe=UTF-8&q=RSS%20Auto%20Discovery]

 <link rel="alternate" type="application/rss+xml"
  title="RSS" href="{URL for RSS}" />

!RSS 2.0 Notes
http://hail2u.net/documents/rss20notes.html