typomaniac - 10:00 am on Jul 25, 2011 (gmt 0)

I'm seeing so many things on xml and xhtml these days and am wondering how important is it for doing web pages. With html and css a person can really do alot and am wondering if it would be feasible to really dig into xml deeper. I see xhtml is not that much different than html and really easy to get used to but will xml ever come to the point where it could possibly be required for putting up a site?