Skype 5 Beta for Mac added back in November group video calling and address book integration. The Skype 5.2 update adds screen sharing to the mix, so you can share presentations, documents, photos, and whatever else you want with multiple people in a video call. The feature should greatly enhance team and client meetings.
Since newly launched (and still in invite-only beta) Google+ Hangouts is an excellent free group video chat, the new group screen sharing feature in Skype may help it stay competitive for businesses. It is, however, not free. Group video and screen sharing are only available for Skype Premium subscribers. Subscriptions start at $US4.49 a month (50 per cent off through to July 31), or you can get a $US4.99 day pass for less regular group meeting needs.