Voicethread
Voicethread is a useful online tool for teachers that want to add a discussion component to their online (or classroom) course that goes beyond the typical text based discussion board. You can use a video, still image, PowerPoint presentation, or text document as a central stimulus. Then class members can respond to the topic using their webcam, microphone, telephone or text. It features a well-designed, easy to use interface that makes a nice addition to the traditional online communications tools used in teaching. Voicethread accounts are available in both free and premium versions, with a special management tool for classroom use.
Here’s a link to a Voicethread that provides a introduction to this tool :
