Great organizational skills Zepher. I'm going to have to make use of this, now that I know what it's for. Hate to stumble upon it's conception at a later date, realizing everything is spread out, and then try to organize.
Glad now that I asked this question.
Ya, it makes it much easier.
Let's say that you have a bunch of movies across 3 drives, on D, E, and F.
I create a Library called Movies
On each drive there is a folder called "Movies" and the movie files are in there.
Then you go to each drive and click on the "Movies" folder and then select "Include in Library" in the top menu and select the "Movies" Library.
Do this on each folder you want to have in that Library.
Now when you click on the Movie Library in the left pane of your explorer folder, all your movies are in there, and you can Arrange them by folder, tag, type, date modified, or name.
Arrange by Folder shows the drive then any subfolders you have on that drive and then the files on that drive
Arrange By Name will show all files in one list.
Libraries is my favorite thing in Windows 7