WebEx is a web conferencing program that allows instructors to work with students located anywhere in the world. It enables desktop sharing, video and phone conferencing so that all participants can see the same content at the same time. WebEx is a useful tool for instructors to explain concepts using slides, documents, or other content. Key advantages of WebEx include improved collaboration as if participants were in the same room, the ability to schedule sessions in advance and invite others, and real-time refinement of ideas. Signing up for a basic WebEx account is free.