Blogger has created a great set of YouTube videos on how to get more out of your blog experience, easily located on their channel here:
http://www.youtube.com/user/BloggerHelp
This could be a great example for libraries to follow to create their set of support videos.

The McGoogan Library of Medicine has a wonderful set of support Flash videos, thanks to Heather Brown, MA, (she is now head of the ILL department) posted on our website:
http://www.unmc.edu/library/guides/index.html

I hope to learn in the Library 2.0 class if these are suitable to post on YouTube on the library's channel: http://www.youtube.com/user/UNMCLibrary
(I have embedded the channel on the right side of this blog for purposes and duration of the Library 2.0 class.)