In August, WestEd cosponsored a conference on the Common Core State Standards. You can access video of presentations by Linda Darling-Hammond, David Liben, Bill Honig, and Kenji Kakuta here. A report, following the conference, was just released that describes what districts are doing to implement the CCSS. You can download the report here.
Several important themes emerge including making sure teachers are given enough professional development around the standards; tools and materials are aligned to the instructional shifts; and districts support the transition to the new assessment.