I recently came across a web-based service called Vialogues which allows you to upload a video, or use one posted to YouTube, to start a discussion. Video + Dialogue = Vialogue!
As an alternative to a text-based forum or bulletin board, it seems to me that the potential is exciting. Once you have created an account on the website, you can upload a video and start a vialogue. You could get students to use the site directly to comment on your video input, or could grab some code from the site to embed in your class Moodle page or other web-page. Students could then view comments and post their own replies from that page.
Here is a vialogue that I created to give you a flavour of how it works.
https://vialogues.com/vialogues/play_embedded/3814/?width=540
All in all, it seems to me that this is a web-service well worth exploring in the classroom, and I am itching to find a project I can try it out with!
Dorian Love
The DigiTeacher 
Vialogues (@Vialogues)
June 11, 2012 at 11:41 pm
Hi Dorian! Thanks for the recognition. I agree with you; I think video is a powerful resource when it comes to teaching and learning. I’m excited for you to find a Vialogues-based project to work on! I’d love to hear how you’re using it. Oh, and if you’ll be using this in your classroom, you might want to check out one of our latest feature additions, “My Groups.” This will allow you to better manage all of your vialogues and all of the participants to those vialogues. Let me know what you think! And if you or your readers have any questions, shoot them my way! You can reach me at vialogues at tc dot columbia dot edu.
Joann Agnitti
Product Manager, Vialogues
EdLab at Teachers College, Columbia University
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