Here is a an excellent  review of free multimedia resources for use by teachers and students

http://classroom-aid.com/educational-resources/multimedia-resources/

Next Vista     http://www.nextvista.org/ 

NextVista provides an an excellent collection of free videos for teachers and students. These free videos for learners are made by students or teachers around the world.

Here is an online community willing to share educational videos . All  videos are screened for  inappropriate and inaccurate content.

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Here is an excellent summary of useful educational resources for use in the classroom

http://www.symbaloo.com/mix/greatclassroomtools 

and another set is located at  http://www.symbaloo.com/mix/greatclassroomtools2

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