User-agent: googlebot
Disallow:
User-agent: GoogleBot
Disallow:
User-agent: alexa 
Disallow: 
User-agent: alexabot 
Disallow: 
User-agent: msnbot
Disallow: 
User-agent: nomad 
Disallow: 
User-agent: AskJeeves
Disallow: 
User-agent: wget 
Disallow:/ 
User-Agent: *
Disallow:/