I was curious if browsing via ip still works, and at least for Y! it does.

   $ dig yahoo.com
   [ ... ]
   ;; ANSWER SECTION:
   yahoo.com.		1153	IN	A	98.139.183.24

plugging 98.139.183.24 into the omnibar on chrome leads to yahoo just fine [1]

[1] https://img.skitch.com/20120426-gdhrn9wpum12y39ifui3um37b2.j...