I had never heard of a doula before we had Charlie:
<< A Doula is someone who provides non-medical support to women and their families during labor and childbirth, and also the postpartum period. >>
http://en.wikipedia.org/wiki/Doula
We had a doula at Charlie's birth, and she turned out to be very helpful. But I only learned about doulas because Mrs. Bee and I took a birthing class together. (I'm sure Bee knew all about it before that though.)
Are you considering a doula?