Maddie Grant of DC-based SocialFish has done a lot of thinking about connecting online audiences with speeches, panels and presentations. More to the point, she's done a lot of doing, including convening one of the most ambitious online conference approaches I've seen: NTC Online, the digital version of the Nonprofit Technology Conference held every year by NTEN. In our conversation, she offers some great advice for event organizers, speakers and anyone who wants to use digital tools to help online and offline audiences learn. And after you've heard our conversation, check out these links:Maddie Grant on Twitter, LinkedIn, Google+ and FacebookSocialFish on Twitter, LinkedIn and FacebookMaddie has cowritten two books: Open Community (disclosure: I cartooned for it) with Lindy Dreyer, and Humanize with Jamie NotterHere's a terrific post from Maddie's blog on hybrid (i.e. online and offline) eventsTodaysMeetStorify