User-agent: Yandex
Disallow: 

User-agent: StackRambler
Disallow: 

User-agent: Googlebot
Disallow: 

User-agent: Googlebot-Image
Disallow: 

User-agent: t-sk
Disallow:

User-Agent: Yahoo! Slurp
Disallow:

User-agent: MSNbot
Disallow:

User-agent: *
Disallow: /