Audio Tools
Tool Features:
Voice over the Internet, allowing you to speak to others by using a microphone connected to your computer, is increasing in use and audio quality. This feature is now integrated into several instant messenger tools, as well as most video conferencing applications.
Where Tool Can Be Found:
Clearphone - pay
http://www.clearphone.com/Crystal Voice - pay
http://www.crystalvoice.com/iChat - free
http://www.apple.com/macosx/features/ichat/NetMeeting - free
http://www.microsoft.com/windows/netmeeting/Talking Communities - pay; some free
http://www.talkingcommunities.com/edu/
Examples of Tool Implementation for Collaboration:
US Department of Education Report (pdf format)