Video conferencing allows for real-time face-to-face interaction between people in different locations, reducing travel costs and increasing productivity. It has advantages like saving travel expenses, encouraging teleseminars, and expanding reach across geographic boundaries. However, it also has limitations such as lack of non-verbal cues from eye contact and discomfort from cameras, as well as security and technology issues. Video conferencing is increasingly being used to support learning by allowing students to take classes at multiple universities and enhancing instruction through more communication with teachers.