Beyond Text: using your voice online
This site explores the application of online voice technologies in different learning contexts and with different learner groups to develop some models of practice and practical guides for teachers who want to integrate online voice technologies into online delivery, assessment and support services
The site includes case studies, facilitator guides, and more. (While the site navigation is a little more clumsy than I'd like, it's worth wading through the unnecessary pages to get to the content.)
[link via Abject Learning]