Marissa Mayer. I believe she was number 20 at Google when she took control of Yahoo. Their stock has been rising. Yahoo was one of the first who offered services like messenger to the masses. They do not seem like such an internet bully like others for what ever reason. The little I have read states they have good positioning in the marketing avenues.
Yahoo is an all-rounder, they have everything at a glance on their website - movies, news, tech, videos, image search, games, music and tons more what google does not offer. Also it does not have image restrictions like in Google, so you can search whatever image you want (uncensored) like in Google; If you know what I mean
Well it depends the nature of use of this search engine, like most people use yahoo mail and other services and the percentage of Yahoo as an search engine is less then Google.
In today's world,yahoo is also on the position that Google had.Yahoo is also an popular search engine. Yahoo answering is also a way to increase the traffic on our website and no. of visitors, hence people's use Yahoo.
If you want to know any latest news and advertisement then you can use Yahoo instead of using it as a search engine..Or if you want to chat then yahoo messenger is good feature of Yahoo that i only like..