This document discusses web conferencing services. It defines web conferencing as a service that allows conferencing events to be shared remotely in real-time. The objectives of using web conferencing in distance education are to bring meeting participants together online to reduce travel costs and increase meeting efficiency. Key features include slideshows, video, screen sharing, and text chat. Advantages are saving time, money, accessibility, and enhancing learning. Disadvantages include costs, technical difficulties, lack of face-to-face interaction, and security breaches.