User-agent: Mediapartners-Google*
Disallow:

User-agent: *
Disallow: /pictures

User-agent: Googlebot-Image
Disallow: /

# skip selected directories
User-agent: teoma
Disallow: /pictures

User-agent: linksmanager
disallow: /

User-agent: ia_archiver 
Disallow: /

User-agent: Scooter 
Disallow: /