What's good and what's missing in GoToWebinar and alternative solutions for delivering live online lectures

Inifinte webinar (Photo credit: RubyJi) I've been using GoToMeeting (GTM) and GoToWebinar (GTW) for three years now, so I thought, it's time to share some experiences. Citrix has been very slow to innovate so I have been looking for alternatives but so far have not found the perfect one to justify…