[gentoo-user] OT: An XML Question

Are there any really good XML tutorials on the web, or perhaps a book
that is actually useful?
 
Also, which libs do people preffer for dealing with XML?
 
I am contemplating messing arround with XML for data files for a project
I want to mess with.
 
The project would involve loading objects into a dynamic list.  I do not
think I want to deal with the XML file in real time, as I am not sure
how fast that would be, but rather load the data into memory, then save
it to the XML file at save points.
 
:-)  My views may change as time goes by, but for now I am learning, and
starting to do research. ^_^
 
----
Kenneth M. Burling Jr