User-agent: Twitterbot
Disallow:

User-agent: Googlebot
Disallow:

User-agent: Mediapartners-Google
Disallow:

User-agent: slurp
Disallow:

User-agent: yandex
Disallow:

User-agent: msnbot
Disallow:

User-agent: bingbot
Disallow:

User-agent: baiduspider
Disallow:

User-agent: *
Disallow: /