User-agent: Mediapartners-Google*
Disallow:

#yahoo.com
User-agent: Slurp
Disallow:

#baidu.com
User-agent: baiduspider
Disallow:

User-agent: *
Disallow: /

#google.com
#User-agent: Googlebot
#Disallow: /

# http://www.robotstxt.org/wc/faq.html#prevent