New Q&A feature in Google Slides

Google Slides (formerly Google Presentations) recently got a great update that's worth checking out. You can now collect audience questions using something called Q&A.  Essentially, while you're presenting, audience members post questions to a link you provide.  Other audience members can then vote up a a question.  At any point, you can see which questions have a lot of votes and reply to them.

This is a great way to involve the audience (even the shy people who might never raise their hand) and filter for questions that have a lot of interest.

Here's a video of Q&A in action (featuring the winner of the first Google Science Fair)