User-agent: Mediapartners-Google* 
Crawl-delay: 5

User-agent: Googlebot
Crawl-delay: 3

User-agent: msnbot
Crawl-delay: 5

User-agent: Slurp
Crawl-delay: 5

User-agent: AskJeeves
Crawl-delay: 5

User-agent: *
Crawl-delay: 10

Disallow: /nexxus*