Several states have already begun using the CCS, so there are quite a few resources already out there.
One of my favorite documents is the Common Core "FlipBook." It was compiled by the Kansas Association of Teachers of Mathematics. They gathered information from a number of places including the Ohio and N. Carolina DOE (states which had already started using the CCS). The "FlipBook" provides a sample of instructional strategies and examples. The "FlipBooks" can be found for Grades K-8 and High School.
My other favorite find was a set of CCS posters to hang in my classroom. They were created by Steve Gibson of Creative Classroom Resources. One of the reasons I LOVE Steve's standard posters is that he includes pictures that actually go with the standard. For this reason, I think his work stands above some of the others out there.
I purchased a set to use in my classroom. I have pushed my two filing cabinets together to make a magnetic board. It is perfect for my standards. I even made some science and social studies standards to match the CC math standards.
You can get these wonderful poster at Steve's TpT store: Creative Classroom A to Z
I have included the resource files that I created this summer. The first is a document that has many links to resources geared toward K-6. The second file is a list of activities/lessons for 6th grade CCS. I hope you find them useful!