Should We Do Q&A with Our Speaker?

To make Q & A work, you need to manage it properly. The greatest challenge is stopping people who say they are going to ask a question but turn that question into a speech which frustrates the rest of the group. The most successful approaches are to either ask for questions in advance and then have a key leader from your group ask the speaker those questions or if you want to be really high-tech, have people submit their questions through Twitter during the talk.