Based on the Myers-Briggs temperament indicator, this group is designed to bring together INFJ, INFP, INTJ and INTP types.  Introverted, however, does not automatically mean excessively shy or sensitive!  It means we are not "happy hour" types, but prefer small group settings with discussions that go beyond "small talk".

Not sure what your Myers-Briggs type is?  Take the test:

http://www.humanmetrics.com/cgi-win/jtypes2.asp

And if you are one of the above types, here's our message to you:

Yes, we are all introverts here and need to be alone to recharge.  But you're also human, which means you still need human contact.  So get out of the house already and come meet up with us.  What else did you have planned for today anyway?