I read this post a few months back and found it to be outstanding. (It's a bit long but when you one you get to the middle, it really picks up. Given that so many of us are parenting some new kiddos, I thought reposting it would be a good idea.)
Parenting adopted kids can sometimes be different but I think in some ways, people forget that when you parent from a Biblical worldview, the base for ALL parenting comes from the same place. Parenting must stem from the belief that all Scripture is God breathed and useful for teaching, correcting, and training in righteousness. Adopted kid or not.