Common Sense Media is probably best known for its reviews of movies and video games. They have released a full K-12th grade curriculum on topics such as online Safety, respecting Privacy, and Cyberbulling. The curriculum includes lesson plans, videos and more.
Common Sense Media describes the curriculum like this:
Common Sense Media offers FREE Digital Literacy and Citizenship Curriculum to help educators empower their students and their school communities to be safe, responsible, and savvy as they navigate this fast-paced digital world.
Thank you, Mel, for suggesting this one!