KidsGrowth.com calls itself “The online leader in pediatric practice management & child advocacy”.
Despite this sounding a little ambitious, the site is truly an incredible resource for parents AND sons to find out and understand plenty of facts that otherwise could only be obtained by visiting pediatricians or psychologists. When you first enter the site you can take two directions depending on your condition. One half of the site is entirely dedicated to teens, and the other one is for parents. Both sections feature similar interfaces and are part of a well intentioned nonprofit site. In it you can learn from the latest news on Chickenpox vaccines to Sports or Sex related information. In terms of design, both sites look really well and are greatly organized, so their navigation should be truly easy for anyone. 
