Yahoo removed them with notifying any of the users. But they didn't think how can we find the categories when they did that. They have made it very hard for us. My solution was to bookmark the line to the categories here: https://answers.yahoo.com/dir/index?sid=...
Click on Answers Home then click on any Category then click on All Category's on the
Top you can get the Left Side of the Page back by clicking on your Name on the Right side
of the page and then click on Edit Preferences and you can see the Category's it will
Only show under Edit Preferences outside the Left side wont show
thats the only way to Access it For now Hopefully Yahoo will Fix it and Provide a
Better way to get to the Category's