User-agent: *
Disallow: /go/
Disallow: /go/*
Disallow: */up/*
Disallow: */down/*
Disallow: */up-*/*
Disallow: */down-*/*

User-agent: Mediapartners-Google
Disallow:

User-agent: Googlebot 
Disallow: /go/
Disallow: /go/*
Disallow: */up/*
Disallow: */down/*
Disallow: */up-*/*
Disallow: */down-*/*