User-agent: *  
Disallow:

User-agent: Googlebot/2.X (+http://www.googlebot.com/bot.html)
Disallow:

User-agent: ia_archiver
Disallow:

User-agent: YahooBot
Disallow:

User-agent: YahooSeeker
Disallow:

User-agent: Yahoo-MMCrawler
Disallow:

User-agent: Yahoo! Slurp
Disallow:

User-agent: msnbot/x.xx ( http://search.msn.com/msnbot.htm) 
Disallow:

User-agent: 
Disallow: Ask Jeeves

User-agent: moget/2.0
Disallow:

User-agent: Scooter
Disallow:

User-agent: ArchitextSpider
Disallow: