If you can't think of Msn.com, the Site MSN found by surprises also started to support the Web standard and started using the Div CSS typography.
It seems that the general trend is, I have to step up exercise. Recently, my first pure XHTML CSS work is to be completed. I will write an experience.
View related reports on the Web Standards site: http://www.Webstandards.org/buzz/archive/2005_02.html#a000485
Or, look at more detailed report: http://stopdesign.com/log/2005/01/31/msn-goes-css.html