I hold scrum meetings with my developers and tech team every day, so I think a good agile software and a disciplined project manager are probably the best source for scrum and learning about it. There is nothing like a good project manager to act as a scrum master, but one experienced specifically in scrum itself.

I have personally utilized YouTube as a good source for scrum meetings, but do not forget that Agile is also the counterpart to scrum meetings.

If you'd like to speak about this in more depth, I'd be more than happy to work with you and show you what scrum resources have worked for me.

Bruce