CustodySource.com 
State by state individuals, groups, and organizations to help with the difficult challenges of child custody. For fathers, mothers and grandparents.
http://www.custodysource.com/Child Custody 911 
Links to over 100 child custody sites.
http://www.custody911.com
Child Custody.org 
Discussion forums for advice on custody, abuse, blended family issues, second wives, grandparents, and visitation. Also includes a list of attorneys for every county in the United States.
http://www.childcustody.org/