User-agent: *
Disallow: /cgi-bin/
Disallow: /images/

User-agent: Big Brother 
Disallow: /

User-agent: EmailSiphon
Disallow: /

User-agent: www.freeloader.com. 
Disallow: /

User-agent: none 
Disallow: /

User-agent: ExtractorPro
Disallow: /