User-agent: Slurp
Crawl-delay: 15 

User-Agent: msnbot
Crawl-Delay: 30

User-agent: e-SocietyRobot
Disallow: /

User-Agent: MJ12bot
Crawl-Delay: 20

User-agent: ia_archiver
Crawl-delay: 300

User-Agent: Gigabot
Disallow: /

User-Agent: Gigabot/2.0
Disallow: /