# go away
User-agent: *
Disallow: /
# except
User-agent: Googlebot* 
Disallow: 
User-agent: Mediapartners-Google* 
Disallow: 
User-agent: Yahoo* 
Disallow: 
User-agent: Slurp* 
Disallow: 
User-agent: msnbot* 
Disallow: 
User-agent: Teoma* 
Disallow: