Introducing YouTube Moderator
Today YouTube has made the Moderator Module available to all channels !

The Moderator Module was previously used for interviews with President Obama and the Canadian Prime Minister, but are now available for all YouTube users !
What can you use YouTube Moderator for ? Here is the scoop from YouTube:
Here’s how it works: You set the parameters for the dialogue, including the topic, the type of submissions, and the length of the conversation. Watch as submissions get voted up or down by your audience, and then respond to the top-voted submissions by posting a video on your channel. The platform operates in real-time, and you can remove any content that you or your audience flag as inappropriate. You can also embed the platform on your own website or blog.
To start using YouTube Moderator on your YouTube Channel, head on over to the 'Modules' tab of the edit channel bar and activate Moderator:

I've set one up myself at YouTube.com/vidiSEO that allows visitors to my channel to leave a question about YouTube:

After
complaining about YouTube Bulletins not allowing viewers to respond back, YouTube Moderator get the job done.
One feature I'd like to see incorporated would be the ability to only allow subscribers to participate in a Moderator module. Right now anyone with a YouTube account can participate. Still, I think this is a cool new feature and I'm excited to see how the community at large will use it.