At PubMed Central, or PMC, all of the articles listed there are freely available to the public. To search the database of free articles at PMC, click here:
http://www.ncbi.nlm.nih.gov/pmc/ Medscape and Medline
www.medscape.comPubMed
http://www.ncbi.nlm.nih.gov/sites/entrezBritish Medical Journal (BMJ)
www.bmj.comA Guide to Effective Care in Pregnancy and Childbirth, online edition (ECPC)
http://www.maternitywise.org/guide/index.htmlMidwives’ Information and Resource Service (MIDIRS)
www.midirs.orgBirth: Issues in Perinatal Care
www.blackwellpublishing.com/journal.asp?ref=0730-7659 As you can tell from the name, a journal specializing in birth and perinatal issues.
Journal of Human Lactation
jhl.sagepub.comThe Lancet
www.thelancet.comNew England Journal of Medicine
www.nejm.comMidwifery Today
www.midwiferytoday.com