Recapping on the Basics
Hangouts are a powerful tool. To be used properly you need to have the following:
- A Google Account
- A Google+ Profile
- A Google+ Page (for your business)
- A website (for your business)
- A YouTube Account (for your business)
If you have a Google+ Page as well as a Google+ Profile, you can now create a YouTube Channel just for your Google+ Page. You may want to create a new YouTube channel that will be used separately from your other YouTube channel. This kind of separation allows you to create video content that addresses a particular type of audience or a particular kind of audience need. As the content builds up so will the value of your channel, so there is a valid reason for separating video content this way. YouTube Channels that are linked to a Google+ Page do have some limitations, detailed here: http://goo.gl/v4k6Qr.
You can find a Google resource page explaining how to create a new channel here: http://goo.gl/bELyV4.
There are a few more things to keep in mind. Make sure that you do the clever search engine optimization trick, and name your YouTube account after your business, rather than choosing any old kind of name. Make sure that your Google Profile is properly filled out and that you have Gmail addresses with your individual names on them, rather than weird acronyms or nicknames.