Q: What technology is available for free to create video for my class?

A: New service knovio: http://www.knovio.com/

Create: bring “flat” PowerPoint® slides to life with your webcam, microphone

Edit: make changes, without the need for video editing software or skills

Share: publish instantly to private spaces or your social networks

Jux: https://jux.com/ gives your user-friendly opportunity to design any content. Use Fkickr (creative Commons licensed) images: http://www.flickr.com/

With MentorMob http://www.mentormob.com/ you can be creative and organize your content.

You can use your iPad as whiteboard with ShowMe application: http://www.showme.com/

ShowMe is an open learning community where you can learn or teach any subject.

If you use Google+ - hangouts offer you whiteboard options as well.

Camtasia Relay gives you an option to upload your video content directly to YouTube channel.

http://www.techsmith.com/camtasia-relay.html