User-agent: * 
Disallow: /cgi
Disallow: /images/
Disallow: /.txt
Disallow: /a/
Disallow: /ads/
Disallow: /b/
Disallow: /t/
Disallow: /?
Disallow: /about_us.html
Disallow: /links_help.html
Disallow: /terms.html
Disallow: /copyright_disclaimer.html
Disallow: /privacy_policy.html

User-agent: Mediapartners-Google* 
Disallow: