User-agent: *
Disallow: /?qa=unanswered
Disallow: /?qa=tags
Disallow: /?qa=categories
Disallow: /?qa=feedback
Disallow: /?qa=user
Disallow: /?qa=ask
Disallow: /?qa=tag/*
Disallow: /?qa=register*
Disallow: /*show=*