I live/work in Ontario, Canada. The resources I personally go to regularly are: SOGC website, NRP, AWHONN, WHO website as well as the CNO and RNAO. Your facility should have developed policies and procedures for dealing with imminent birth, fetal monitoring, preterm labour, eclampsia, etc. On our unit, you have to be a University educated RN with a current NRP certification and at least level 1 of the maternity certificate.
Our OB dept is currently taking the MOREOB program. It is great for dealing with obstetrical emergencies, things that you will probably see in the ER with no OB department: shoulder dystocia, postpartum hemorrhage, forceps and vacuum deliveries, etc. We were fortunate enough to have a local business fund enough training for 36 staff: doctors, nurses, midwives and RT's. Part of the training includes lots of skills drills, as well as pre and post tests. I recommend it highly.