Wired Magazine (a technology magazine) takes on the almost taboo topic "Am I a bad mother if I bottle-feed my newborn instead of breast-feed?" Their conclusion:
Try breast-feeding – it’s healthier and may be less onerous than you think. And if it just doesn’t work out, formula is fine.
One interesting point. Michel Cohen, author of The New Basics, says that breastfeeding may be correlated with all sorts of good things because breastfeeding is also correlated to high incomes.