As the Common Core State Standards have reached into schools and classrooms, we've written a lot about the lack of good, aligned instructional resources for them. We've written, too, about projects such as EQuIP, which are trying to fill that vacuum by analyzing materials and posting their reviews.
Since we first wrote about EQuIP, back in February, the organization has added many new sets of math and English/language arts materials to its website. About 50 lessons and units with positive ratings are now part of EQuIP's online library of exemplars. (EQuIP doesn't post the ones with negative reviews.)