What's the difference between each one in here?
<link rel="alternate" type="application/rss+xml" href=http://www.webdeveloper.com/forum/archive/index.php/"/index.xml">
<link rel="alternate" type="application/rdf+xml" href="http://del.icio.us/rss/user">
<link rel="alternate" type="application/atom+xml" href="http://user.blogspot.com/atom.xml">
Thanks!
<link rel="alternate" type="application/rss+xml" href=http://www.webdeveloper.com/forum/archive/index.php/"/index.xml">
<link rel="alternate" type="application/rdf+xml" href="http://del.icio.us/rss/user">
<link rel="alternate" type="application/atom+xml" href="http://user.blogspot.com/atom.xml">
Thanks!