User-agent: Mediapartners-Google* 
Disallow:

User-agent: *
Disallow: /.htaccess/
Disallow: /cgi-bin/
Disallow: /images/
Disallow: /donate.html/
Disallow: /answers.html/
Disallow: /alt_ad1.html/
Disallow: /alt_ad2.html/
Disallow: /alt_ad3.html/
Disallow: /alt_ad4.html/
Disallow: /alt_ad5.html/
Disallow: /alt_ad6.html/
Disallow: /alt_ad7.html/
Disallow: /alt_ad8.html/
Disallow: /alt_ad9.html/
Disallow: /alt_ad10.html/
Disallow: /alt_ad11.html/
Disallow: /alt_ad12.html/
Disallow: /alt_ad13.html/
Disallow: /alt_ad14.html/
Disallow: /alt_ad15.html/
Disallow: /alt_ad16.html/
Disallow: /alt_ad17.html/
Disallow: /alt_ad18.html/
Disallow: /alt_ad19.html/
Disallow: /alt_ad20.html/
Disallow: /alt_ad21.html/
Disallow: /alt_ad22.html/
Disallow: /alt_ad23.html/
Disallow: /alt_ad24.html/

User-agent: msnbot
Crawl-delay: 10

User-agent: Teoma
Crawl-delay: 10

User-agent: Slurp
Crawl-delay: 10

User-agent: aipbot
Disallow: /

User-agent: BecomeBot
Disallow: /

User-agent: psbot
Disallow: /