User-agent: Naver*
Disallow: /

User-Agent: Openbot*
Disallow: /

User-Agent: msnbot*
Disallow: /

User-Agent: psbot*
Disallow: /

User-Agent: ConveraCrawler*
Disallow: /

User-Agent: TurnitinBot*
Disallow: /

User-Agent: w3m*
Disallow: /

User-Agent: Steeler*
Disallow: /