An advanced conferencing service is usually required for big companies that need more than instant messaging to get their work done. While conventional conferencing services offer an integrated solution for meetings of ten people, advanced conferencing can give access to hundreds. Depending on your companys size you might choose one over the other, while at the same time considering if the costs involved in such services are worth paying for. The good thing about big corporate web meeting packages is that they include all the technological advances of conferencing such as audio, video and true 24 bit color desktop sharing.