Neil over at Shibui Bonsai has just posted some very interesting results of taking cuttings from Japanese Black pine seedlings.
He essentially is getting two plants from every seedling as opposed to the standard method where the original roots are thrown away. His strike rate has been excellent and with seed in Australia often being scarce doubling your stock shortly after germination is a great thing!
Anyway, have a look, it is well worth a read.
Oh and Neil also grows some excellent stock in a range of species which can also be found on his site, http://shibuibonsai.com.au/.