Obviously, I really like this website
I also use google like 50 times a day and Facebook is addictive too.
Another great site is ParentsConnect.com by Nickelodeon. It has a ton of great resources for parents and some great recipe and craft ideas too!
Also, Helia Communities is one I just joined and think is fabulous. It is a great resource for medical information if you have extra questions that you didn't get to ask your doctor or are just doing some research on your own. I am amazed at the wealth of information on the site.