A more trustworthy, controlled reviews and question-answer site geared towards preexisting mailing lists like those in big companies: http://www.askurpals.com/
You are right about the name but big company mailing lists is just starting point for us - mainly because they are easy to target. In theory there is no reason why it couldn't be used for any general mailing lists like Yahoo! Groups or even set of individual email address manually typed in "To:"