User-agent: googlebot
Disallow: 

User-agent: yahoo-slurp
Disallow: 

User-agent: teoma
Disallow: 

User-agent: gigabot
Disallow: 

User-agent: scrubby
Disallow: 

User-agent: robozilla
Disallow: 

User-agent: nutch
Disallow: 

User-agent: ia_archiver
Disallow: 

User-agent: baiduspider
Disallow: 

User-agent: baiduspider
Disallow: 

User-agent: googlebot-image 
Disallow: *.jpg$
Disallow: /*.gif$ 

User-agent: msnbot
Disallow: /*.jpg$
Disallow: /*.gif$