There are tons of teleconference tools out there. Many are free and cheap, and the distinguishing factor tends to be other conferencing features (real-time chat, screen sharing, etc.). MaestroConference is a unique teleconference tool that allows you to Break Out into smaller groups on the call.
All Too Real Humor
Desktop Screen Sharing
- GoToMeeting (Blue Oxen Associates uses this)
- Adobe Connect
- Skype beta for Windows and Mac works very well. Requires both sides to be on Skype.
- Glance. Browser-based via Java.