User-agent: Yandex
Allow: /
Sitemap: http:///sitemap.xml.gz
Host: 

User-agent: Googlebot
Allow: /
Sitemap: http:///sitemap.xml.gz

User-agent: StackRambler
Allow: /
Sitemap: http:///sitemap.xml.gz

User-agent: msnbot
Disallow: /

User-Agent: Yahoo! Slurp
Disallow: /

User-Agent: *
Disallow: /