Zero to Three (www.zerotothree.org) is a great website for parents and professionals about infant and toddler development. After registering for free on the website, one can download articles and receive emails with new information and cutting edge research on infant development. One of the most interesting things they offer is something called the Baby Brain Map. On this, you can click on a certain developmental age group and see a picture of the brain. Different areas are highlighted -- for example -- language, cognition, social-emotional, motor skills, etc. After clicking on one of these, you can read a short description of exactly what is going on in your child's brain at that age, as well as read tips for what you can do to facilitate development.