Very good question, Lewis. You don’t need to go nuts by using a site like YouTube to send out some PR towards your channel. I’d just remark/adhere to/subscribe to the top 50-100 of the very best PR pages and go away it at that. That’s most likely sufficient. It http://felixkchoa.blogocial.com/Not-known-Factual-Statements-About-youtube-backlinks-why-you-need-them-38477839