Meet the new Yahoo (YHOO). It looks much the same as the old Yahoo, but it does include some nifty new features. As Yahoo CEO Marissa Mayer outlined in a blog post on Wednesday, Yahoo’s newly revamped homepage now includes an “infinite scroll” news feed that behaves more like a Twitter feed than a traditional list of news links. The new homepage is also more tightly integrated with Facebook (FB) and lets users see all Yahoo News articles recommended by their friends. And finally, Mayer says the new site has been better optimized for both smartphones and tablets, and should now load faster on both thanks to some “under the hood” improvements. The revamped site’s new features should be rolling out to users throughout the week, Mayer says.