Answering questions using evidence from the text is one of the biggest points of emphasis in the ELA CCSS. This article explains what text dependent questions are AND how to write them.
While this isn't technically a post about the Common Core, in it Bill Ferriter does raise some excellent questions about curriculum that I think educators need to think about as they make the CCSS transition.
This post from Education Gadfly's Common Core Watch is thought provoking. I know there's a lot of pushback on CCSS due to the move toward an increase in the use of informational text. This post questions those critics. Interesting stuff.