I use YouTube.com a lot as a musician. If I have a new chart to work up or a solo to cover in a jazz band, I’ll go to my CD collection and YouTube to find something I like. Part of that research is done through my YouTube portal at http://www.youtube.com/Gandalfe where I keep my musical bookmarks, subscriptions and the videos I’ve posted.
Once a month or so I get an email from YouTube with highlights from the people who’s videos I subscribe to and it looks like this. From there I cherry pick the new videos and listen to them, promote them on Twitter or Facebook.
Many of the YouTubeage videos that I’ve discovered for vintage jazz are performances I would have never seen, often taken at jazz festivals overseas, or recorded years ago off of black and white TV. Fascinating stuff, if’n you ask me.