Google has given content producers the ability to get feedback and let their viewers ask questions. That is all done with something that has been released to the public, called Google Moderator. Google Moderator is a forum where people can ask questions, suggest things, and submit ideas to a topic. If you go to google.com/moderator, you can make your own Nickname and location for others to see, and then you can get started posting on forums or making your own series. You can have people link to your series, or put it on your YouTube channel, like I have. I have also put a series in an iFrame on my website, at "ask me anything" and "channel survey."