User-agent: Googlebot
Disallow: */trackback/
Disallow: */atom/
Disallow: */feed/
Disallow: */rss/
Disallow: */rdf/

User-agent: Ask
Disallow: */trackback/
Disallow: */atom/
Disallow: */feed/
Disallow: */rss/
Disallow: */rdf/

User-agent: Yahoo Slurp
Disallow: */trackback/
Disallow: */atom/
Disallow: */feed/
Disallow: */rss/
Disallow: */rdf/

User-agent: MSNBot
Disallow: */trackback/
Disallow: */atom/
Disallow: */feed/
Disallow: */rss/
Disallow: */rdf/