It is not widely known that Skype has provided video-conferencing from the desk-top since January 2006 (V2.0.0.69). Desk-top video-conferencing can eliminate the need for special video-conferencing equipment and rooms. For existing Skype users, the only additional technical requirement is a web-cam. The call costs are the same as for Skype voice conferences, eg. free to other Skype users.
Skype's "High Quality Video" capability is expected to boost the popularity of video calls - both for professional collaborations across the globe and for 
staying in touch with family and friends.