Here is a link to an article on the impact of doulas on healthy birth outcomes. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3647727/
Here is a great link to an article that anyone who is pregnant and wants to breastfeed, or who is a new mom and struggling with breastfeeding, should read. It sure would have helped me as a newly breastfeeding mom.
This link is to a great article on the top 10 things to avoid in pregnancy and the top 10 things to do in pregnancy as well as some things to consider if you are thinking about getting pregnant.