Can anyone direct me to a page with xml in use? Something that can help me
grasp what its all about.
I didn't understand xml at all until I started using it . I asked pretty much the same question as you (what is it good for?). Now I will almost always use xml in any app I work on.
One application that is simply wonderful is xsl transformations. This allows you to take xml and transform it into html, wml, pdf, rtf , etc...
What this ultimately means to me is seperation of presentation from logic and data which makes for a very flexible and easy to maintain application.
I have made a php class to make a database query into xml in the form of:
<record><fieldname> value </fieldname></record>
Now stuff I used to do that took a whole page to code nows uses about 5 lines. This is a real world benefit for me.
Spend some time learning about xml and you won't regret it