Web Conferencing is a newly emerging technology through which individuals or groups can communicate in real time with each other. Nowadays web conferencing has been proving an important communication tool of knowledge management in modern organizations characterized by highly sophisticated and diversified technologies. This paper analyses a case study of ABB Ltd to highlight that how online conferencing helped the company in supporting collaborative behaviors for knowledge management (KM) which resulted in making a strong knowledge base, knowledge sharing culture and highly interactive work teams.