i have a friend who is a doula and she *loves* it.
i would say perfect your massage technique! i had horrible back labor and would have loved a massage during that time. nick tried to help me, but between him being nervous and my witch of a nurse forcing me to stay on my back, it didn't help.
what do doulas do after labor? will you be going home with her and helping there or do you mean after birth but still in the hospital?