User-agent: Mediapartners-Google* 
Disallow:

User-agent: *
Disallow: /a/
Disallow: /stat/
Disallow: /blog/
Disallow: /photo/
Disallow: /gb/
Disallow: /board/0
Disallow: /main/
Disallow: /admin/
Disallow: /secure/
Disallow: /informer/
Disallow: /mchat
Disallow: /dir/