Sometimes there is a need or desire to hold a synchronous session in an online course. For instance, students may want to get together live to work on a group project or the teacher wants to have a live discussion about a current event or a particularly difficult concept. There are many tools out there to meet these various needs. Check out this post from “On Teaching Online” that explores Live (Synchronous) Meeting Systems Tools. It does not address Google+ Hangouts which is another popular informal video conferencing tool.
Have you used anything else that the article does not mention? Was it effective?