For general parenting advice, we love:

http://www.askdrsears.com/

http://www.mothering.com/

http://www.attachmentparenting.org/

http://www.drgreene.org/

 
For breastfeeding support, check out:
http://www.llli.org/
http://kellymom.com/
http://mamaknowsbreast.com/

http://www.bestforbabes.org/

To learn more about the benefits of babywearing:

http://www.thebabywearer.com/

http://babywearinginternational.org/

To help you navigate the often confusing cloth diaper world:

http://www.diaperpin.com/home.asp

http://www.diaperjungle.com/

http://www.diaperfairy.net/

For safe bed sharing practices:

http://mothering.com/parenting/co-sleep-safety-guidelines

http://www.askdrsears.com/html/7/t070600.asp