A few months ago Amazon Education launched a private beta open education resource platform. I've been lucky enough to be a private beta participant and I'm enjoying the site. It's easy to find resources and get ideas from other innovative and effective educators.
Currently the site allows invited educators to post and search for K - 12 resources. Educators can search the site by grade level, subject area, standard, and creator.
The open resource movement is a fantastic way for educators to collaborate throughout the world and provides a free way to find high quality teaching resources outside what has been purchased in a box from a school district.
Back in October 2015 the U.S. Department of Education announced the launch of #GoOpen to encourage such collaboration. Amazon was named as a collaborator in that announcement. Fourteen states (unfortunately not California) have launched statewide initiatives.
If you'd like to join the wait list for the platform go to http://bit.ly/AmazonEduWaitList