User-agent: Mediapartners-Google*
Disallow: /images/

User-agent: Googlebot-Image
Disallow: /

User-agent: *
Disallow: /images/
Disallow: /pm
Disallow: /register
Disallow: /email
Disallow: /search
Disallow: /file
Disallow: /thumb
Disallow: /upload
Disallow: /tool/view/gb/private
Disallow: /tool/view/gb/email