Baby Crying: What's Normal and What's Not

What really happens when babies are left to cry it out?

How much crying is normal for a baby?, Baby & toddler articles & support

Why is My Baby Crying at Night?, Different Baby Cries and What They Mean

Crying baby? What to do if your baby cries all the time

Why Does My Baby Cry for No Reason? - Peach and Pumpkins

Infant crying - Wikipedia

4 Types of Cries & What They Mean - mylicon

Baby Suddenly Crying Inconsolably When to Call the Doctor – Happiest Baby

Crying: babies Raising Children Network