BabyCenter is a US website which extraordinarily helps in becoming parents. It's a bit like a virtual midwife + parents' community + experts' advice "all-in-one" - well, almost better than Mary Poppins' magic! 

You can register the moment you know you are pregnant and follow your future baby's development step by step (also available through a mobile application), you can ask questions at any time, chat with other parents, and receive a newsletter which is specifically addressing the issues encountered at the stage / age of your child or children.

It is extremely efficient, clear and easy to navigate. It is sometimes just such a helpful relief to find out that what you are struggling with at home is just plain normal at a certain age... and yet to receive expert and professional advice to overcome the problem.