User-agent: Yandex
Disallow: /

User-agent: *
Disallow: 

User-Agent: *
Allow: /

User-Agent: Googlebot
Allow: /

User-Agent: MSNBot
Crawl-Delay: 30

User-agent: Slurp
Crawl-delay: 30

User-agent: Mediapartners-Google*
Disallow: