Puget Sound Educational Service District here in Washington State hosts a site called CORElaborate that features tools, resources, and blog posts about teaching the Common Core State Standards and the Next Generation Science Standards. This projects supports a group of teacher leaders who are charged with blogging and tweeting about their experiences.
Three of the teacher leaders who are sharing their learnings and thoughts about NGSS are:
Doug Ferguson @daskalosdouglas : A recent post- What is STEM and When are We Going to Start Doing it?
I highly recommend following these folks on Twitter and their blog posts on CORElaborate.