This is a little behind the conversation.  I made an inquiry for a URL to a friend's website that has a lot of info on voice activated software and its use.  Finally got a reply....
 
www.speakingsolutions.com
 
The site is more commercial than it used to be, but you can find a lot of useful articles if you take a minute to look.
 
 
Kathryn Van Wagoner
Coordinator, Math Tutorial Services
Utah Valley State College
801-863-8411