User-agent: Mediapartners-Google* 
Disallow: /cgi-bin/
Disallow: /admin/

User-agent: alexa*
Disallow: /cgi-bin/
Disallow: /admin/ 

User-agent: Googlebot-Image
Disallow: /

User-agent: YahooSeeker
Disallow: /cgi-bin/
Disallow: /admin/

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