Yahoo Webmaster tools is gone

I often use Yahoo Webmaster tools to check website external link , but i just open the tool today , the website had changed , it show me the following text .
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With the completion of algorithmic transition to Bing, Yahoo! Search has merged Site Explorer into Bing Webmaster Tools. Webmasters should now be using the Bing Webmaster Tools to ensure that their websites continue to get high quality organic search traffic from Bing and Yahoo!.
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like the p1:

p1

It is recommend us to use Bing Webmaster Tools , but Bing Webmaster Tools is not so convenient to Yahoo Webmaster tools , you can only analysis your website in Bing Webmaster Tools .

like the p2 and p3:

 

p2

 

p3