is from the George Lucas Educational Foundation, whose mission is to improve the K-12 learning process through innovative, replicable, and evidence-based strategies that prepare students to thrive in their studies, careers, and adult lives.
Public Broadcasting Service provides direct access to thousands of classroom-ready, curriculum-targeted digital resources and links to its most popular educational program such as Nature and NOVA.
provides an online community for sharing instructional videos, as well as a site where teachers can post videos designed for students to view in order to learn a concept or skill.