User-agent: Yandex
Disallow:

User-agent: Googlebot
Disallow:

User-agent: StackRambler
Disallow:

User-agent: MSNBot
Disallow:

User-Agent: Aport
Disallow:

User-Agent: YahooBot
Disallow:

User-Agent: Scooter
Disallow:

User-Agent: Mail.Ru
Disallow: