Have you heard about Webinars?? The term is short for web based seminars. A presentation, lecture workshop or seminar that is broadcast over the Web. http://www.webopedia.com/term/w/webinar.html
A key feature of a webinar is the interactive elements. All you have to do is sign up for an account with any provider a good one is GoToMeeting https://www4.gotomeeting.com/t/gcon/2012_Q2/Contextual/300x250/promo/nocc30_insp/g2m_HDFaceslp?Portal=www.gotomeeting.com&Target=m/g2m_HDFaceslp.tmpl Here is the link. For a 30 day free trial account with up to 15 attendees. For further questions you may also call them at 1-88-646-0014. This is HD video conferenceing for one flat rate after the 30 dau free trail, a great deal to save on travel costs and a great way to get everyone together while being miles apart.