User-agent: *
Disallow:

User-agent: Slurp 
Disallow:

# ridiculous amount of accesses from TurnitinBot
User-agent: TurnitinBot
Disallow: /

# altavista's image bot (does not block main altavista bot, only their image bot)
User-agent: vscooter 
Disallow: / 

# openbot load too high
User-agent: Openbot
Disallow: /