Autism Society: If you have concerns about your child and autism, speak to your doctor. Beware of personal Web pages and blogs that might frighten you about autism. Instead, look for reliable information, and don't panic before you've gotten a diagnosis that sounds reasonable to you. This Web site gives detailed information about the range of autism diagnoses. It includes health information and support, and works to raise funds to help children with these challenges.

Asthma and Allergy Foundation of America: This is the official site of the Asthma and Allergy Foundation of America and offers a wealth of information about the symptoms and treatments of these illnesses. It gives you help on locating the right physician as well as information for helping your child cope with allergies.

WebMD: This site is full of helpful information for people of all ages, but you can go to its “parenting and family” page for extensive facts and advice on a wide variety of childhood illnesses and behavioral issues. There are physician and parent blogs, as well as Q & As and a “Symptom Checker” page.

American Academy of Pediatrics: This website is designed for both parents and doctors. You can search for highly reliable health information by age or topic. Even though it is written in a dry manner, it's altogether a valuable resource for health information.