Today I discovered a wonderful list of available, prerecorded, free webinars on a variety of topics, many of which pertain to teaching and instruction in higher education. They are provided by Elluminate, a very useful platform for providing multipoint platform for communications. With Elluminate you can have a virtual live discussion with a group of students.
Many of the available webinars are about technology used in teaching, so I thought you might like to link to them from here so you can enjoy them, too.
Here is the link: https://sas.elluminate.com/site/external/event/playback