User-agent: http://www.gigablast.com/
Disallow: /
User-agent: http://www.hyperix.com/
Disallow: /
User-agent: *
Disallow: /*.pdf$
Disallow: /*.Pdf$
Disallow: /*.PDF$
Disallow: /*.psd,rtf,gz$
Disallow: /*.zip$
Disallow: /*.Zip$
Disallow: /*.ZIP$