Webinar Advice Please

Hello Classroom 2.0ers,

I've been late to dive into the Webinar waters because of my own personal experience with their glitchiness. I know the technology is better now and I'm jumping back in to this arena. I'd love your help. What is the ideal length of a webinar? What are best practices, ideas, tips, tricks, advice, articles that you have around doing webinars. I will be using Adobe Connect. Look forward to hearing your ideas.