Google does something smarter than that. http://www.google.com/a/help/intl/en/admins/pdf/ds_gsa_apps_whitepaper_0207.pdf http://www.google.com/a/help/intl/en/a

Google does something smarter than that. http://www.google.com/a/help/intl/en/admins/pdf/ds_gsa_apps_whitepaper_0207.pdf http://www.google.com/a/help/intl/en/admins/pdf/ds_gsa_apps_... explains what.