Glogster EDU: Virtual 'posters', or web pages, to deliver content or for students to demonstrate understanding
DEStreaming: Educational videos, video clips, lesson plans, interactives, audio files, images, and so much more.. and HERE
Bitstrips for Schools: Digital Comics in the Classroom
Espresso Education (PreK-5 only): web based cross curricular environment - videos, lessons, activities, interactives...
Powtoon: an online comic/presentation tool
PBWorks: wiki/blog for classroom collaboration
Class DoJo: awesome classroom management/behavior tool
Backchanneling in the Classroom: Group chat while a video or lesson is happening
InkleWriter: Create your own "choose your own ending or branching stories"
Storybird: Create 'art-inspired' stories
BrainPop and BrainPop Jr: Videos and quizzes on all curriculum topics, done by cartoon characters
Socrative: Free online quizzing/polling tool
ThingLink: Create interactive hot spots on any image
Wallwisher/Padlet: create a virtual wall onto which anyone can post ideas, links, videos
Teaching Channel: Videos created BY teachers, FOR teachers on a variety of topics: tips, trick teaching methods..
Maps 101: Interactive database on all things "maps"