Discovery Education and the Discovery Educator Network are great resources for educators and students. They have over 30 free resources for educators, Discovery Streaming Plus, Discovery Assessment, Discovery Education Science TechBook (really awesome) and much more.
They are hosting a sneak peek webinar series of some of the changes coming to Discovery Education this summer. You can find out about product updates, mobile and social products and updates and all the newest, latest, greatest features and resources available.
Discovery Educator Network - great resource for all educators
Discovery Products, News, Lesson Ideas, Resources and more
25 Free Resources from Discovery Education
Discovery Education Science TechBooks - great resource - more than an e-text