Customer Support:  support@computervoice.com
        General Information:  info@computervoice.com
        Sales:  sales@computervoice.com
        Webmaster: web@computervoice.com
        Mobile Support: mobilesupport@computervoice.com
      
From inside QST: via white question mark labeled "Live Help" located on the top left toolbar.
From outside QST:
Sales: 312-980-8200
For QST Mobile for BlackBerry: Sign-up for a free trial guide
For QST Mobile for iPhone: Sign-up for a free trial guide