Ask HN: Appetite for DevOps Screencasts?

Hi, I am putting together a sysadmin/dev/ops screencast site, the kind of thing I wished existed, when I was coming up as a sysadmin. I have produced five episodes so far @ http://sysadmincasts.com/ - Am I on the right track? - Episode ideas? Automation seems to be taking off. Puppet for sure. - General feedback.. Thanks, Jusitn