It's been a few years since Yahoo! redesigned their front page - it was looking pretty cluttered and pretty tired. So they cleaned it up again. Doesn't look too bad considering all of the information they're trying to cram into one screen of pixels. It's still a bit dis-organized though. This is the direct result of being a large company that can no longer turn on a dime. Different pieces of the page have slightly different looks than other pieces. Ah yes, I remember well the process of trying to get development teams scattered across the globe to provide a common look and feel when all their pieces came together on a single page.  

But I would like to draw your attention to the little menu bar on the right, with mail and chat and traffic reports, etc. For those to whom it isn't intuitively obvious, it's a little AJAX app.

Nice touch.