The following links are great to find videos related to content concepts for your CAVB:
http://www.youtube.com/
http://teachertube.com/
http://www.schooltube.com/
The following links are great Web 2.0 tools to create your own videos for your CAVB:
http://www.empressr.com
http://www.masher.com
http://www.animoto.com/
http://www.wetoku.com/
